Difference between revisions of "CircuitJS/C2/Ohm's-Law-using-CircuitJS-simulator/English"

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(Created page with " {| border="1" |- || '''Visual Cue''' || '''Narration''' |- || Slide:1 || Welcome to the spoken tutorial on Ohm’s Law using '''CircuitJS''' simulator |- || Slide 2: Lear...")
 
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|| Slide:1
 
|| Slide:1
  
−
|| Welcome to the spoken tutorial on Ohm’s Law using '''CircuitJS''' simulator
+
|| Welcome to the spoken tutorial on Ohm’s Law using '''circuitjs''' simulator.
−
|-  
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Slide 2:
 
|| Slide 2:
  
 
Learning Objective
 
Learning Objective
 
|| In this tutorial, we will learn how
 
|| In this tutorial, we will learn how
−
* Voltage, resistance, and current are related in a circuit.
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Voltage, resistance, and current are related in a circuit.</div>
−
* Ohm's Law helps to understand this relationship.
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Ohm's Law helps to understand this relationship.</div>
  
−
|-
+
|- style="border:1pt solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.206cm;padding-right:0.191cm;"
−
|| Slide 3:
+
|| Slide 3
−
 
+
−
Prerequisite
+
−
|| To follow this tutorial, you should have a basic knowledge of
+
−
* Electrical circuits
+
−
 
+
−
|-  
+
−
|| Slide 4:
+
  
 
System Requirement
 
System Requirement
 
|| To record this tutorial, I am using:
 
|| To record this tutorial, I am using:
−
*'''Ubuntu Linux '''20.04 OS
+
* <div style="margin-left:1.27cm;margin-right:0cm;">'''Ubuntu Linux '''20.04 OS</div>
−
*'''CircuitJS''' Application
+
* <div style="margin-left:1.27cm;margin-right:0cm;">'''CircuitJS''' Application</div>
  
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
−
|| Slide 5:Textbook reference
+
|| Slide 4:
  
−
'''Coverpage.png'''
+
Prerequisite
 +
|| To follow this tutorial, you should have a basic knowledge of
 +
* <div style="margin-left:1.27cm;margin-right:0cm;">Electrical circuits</div>
  
−
'''Book Page.png '''
+
|- style="border:1pt solid #000000;padding:0.176cm;"
−
|| We have taken the examples from the school textbook.
+
|| Slide 5:  
−
|-
+
−
|| Slide 6:  
+
  
 
What is Ohm's Law?
 
What is Ohm's Law?
  
−
|| Ohm’s Law equation is '''V = I x R.'''
+
<div style="color:#ff0000;"></div>
 +
 
 +
|| <span style="background-color:#ffffff;">Ohm’s Law equation is </span>'''V = I''' x '''R.'''
  
−
'''V''' is the voltage across the conductor measured in Volts.
+
<span style="background-color:#ffffff;">'''V'''</span><span style="background-color:#ffffff;"> is the voltage across the conductor measured in Volts.</span>
  
−
'''I''' is the current flowing through the conductor measured in Amperes.
+
<span style="background-color:#ffffff;">'''I'''</span><span style="background-color:#ffffff;"> is the current flowing through the conductor measured in Amperes.</span>
  
−
'''R '''is the resistance provided by the conductor measured in Ohms.
+
<span style="background-color:#ffffff;">'''R '''</span><span style="background-color:#ffffff;">is the resistance provided by the conductor measured in Ohms.</span>
 +
|- style="border:1pt solid #000000;padding:0.176cm;"
 +
|| <div style="color:#ff0000;">Show the diagram</div>
  
−
|-
+
Ohms’ law circuit
−
|| Ohms’ law circuit
+
  
 
'''Ohm’s Law Circuit.png'''
 
'''Ohm’s Law Circuit.png'''
  
−
|| This is the Ohm’s law circuit shown in the textbook.
+
|| To verify Ohm’s law we will use this circuit for demonstration.
  
 
For this experiment, we need
 
For this experiment, we need
−
*4 DC Voltage Supply of 1.5 Volts
+
* <div style="margin-left:1.27cm;margin-right:0cm;">4 DC Voltage Supply of 1.5 Volts</div>
−
*1 Resistor
+
* <div style="margin-left:1.27cm;margin-right:0cm;">1 Resistor</div>
−
*Voltmeter
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Voltmeter</div>
−
*Ammeter
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Ammeter</div>
−
*Switch
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Switch</div>
  
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
−
||  
+
| style="color:#ff0000;" |  
 
|| We will learn how to create the same circuit in '''Circuitjs''' simulator and understand the concepts.
 
|| We will learn how to create the same circuit in '''Circuitjs''' simulator and understand the concepts.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
−
||  
+
| style="color:#ff0000;" |  
 
|| Let us open the '''circuitjs''' interface as shown.
 
|| Let us open the '''circuitjs''' interface as shown.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Click on the '''Draw''' option
 
|| Click on the '''Draw''' option
  
Line 79: Line 75:
 
Click on the '''Draw''' option in the menu bar.
 
Click on the '''Draw''' option in the menu bar.
  
−
Now, select''' Add resistor''' and click and drag to draw a resistor as shown.  
+
Now, select''' Add resistor'''.
−
|-
+
 
 +
Click and drag to draw a resistor as shown.  
 +
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Show the path to find the DC power supply and draw it
 
|| Show the path to find the DC power supply and draw it
  
Line 89: Line 87:
 
Click on Draw, then go to '''Inputs and Sources''', and select '''Add Voltage Source (2-terminal)'''.
 
Click on Draw, then go to '''Inputs and Sources''', and select '''Add Voltage Source (2-terminal)'''.
  
−
Drag the voltage source above the resistor.
+
Draw the voltage source above the resistor.
  
−
Make sure the positive end of the voltage source is on the left side.
+
Make sure that positive end of the voltage source is on the left side.
−
 
+
−
In this case, we need to change the voltage source's direction.
+
In this case, we need to change the direction of the voltage source.
  
 
Right-click on the voltage source component and select '''Swap Terminals'''.  
 
Right-click on the voltage source component and select '''Swap Terminals'''.  
Line 99: Line 97:
 
You will notice the polarity of the voltage source changes.
 
You will notice the polarity of the voltage source changes.
  
−
|-
+
We want a DC voltage source of 1.5 volts, but it's set to 5 volts by default.
−
||
+
−
|| We want a DC voltage source of 1.5 volts, but it's set to 5 volts by default.
+
  
 
To change it, right-click the voltage source.
 
To change it, right-click the voltage source.
Line 110: Line 106:
  
 
Delete the value 5 and type 1.5 and click the OK button to save the change.
 
Delete the value 5 and type 1.5 and click the OK button to save the change.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
||  
 
||  
 
|| We need three more of these same DC voltage sources connected one after another.
 
|| We need three more of these same DC voltage sources connected one after another.
Line 122: Line 118:
 
Make sure the parts don't overlap when you connect them.
 
Make sure the parts don't overlap when you connect them.
  
−
|-
+
Next let us label these voltage sources.
−
||
+
−
|| Next let us label these voltage sources.
+
−
 
+
  
 
Click on the '''Draw''' button, then go to '''Output and Labels''' and select
 
Click on the '''Draw''' button, then go to '''Output and Labels''' and select
  
 
'''Add Text.'''  
 
'''Add Text.'''  
−
 
  
 
Move the cursor to the working space and click and drag.
 
Move the cursor to the working space and click and drag.
Line 141: Line 133:
  
 
Arrange the label for a neat look.
 
Arrange the label for a neat look.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Draw => Outputs and Labels => Ammeter
 
|| Draw => Outputs and Labels => Ammeter
 
|| To measure the current in the circuit, we'll use '''Ammeter'''.
 
|| To measure the current in the circuit, we'll use '''Ammeter'''.
−
 
  
 
Click on the '''Draw''' button, then go to '''Output and Labels''' and select '''Add ammeter'''.
 
Click on the '''Draw''' button, then go to '''Output and Labels''' and select '''Add ammeter'''.
  
 
Now, connect the ammeter to the resistor in the circuit.
 
Now, connect the ammeter to the resistor in the circuit.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Draw => Outputs and Labels => Voltmeter / Scope probe
 
|| Draw => Outputs and Labels => Voltmeter / Scope probe
 
|| Let us add a '''voltmeter''' across the resistor to see the amount of voltage passing through it.
 
|| Let us add a '''voltmeter''' across the resistor to see the amount of voltage passing through it.
 +
 
 +
 +
Click on '''Draw''' and select '''Outputs and Labels.'''
  
−
Click on the '''Draw''' and select '''Outputs and Labels''' and select '''Add Voltmeter/Scope probe'''.
+
Then''' '''select '''Add Voltmeter/Scope probe'''.
  
 
Place it below the resistor as shown.
 
Place it below the resistor as shown.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Draw => Passive Components => Switch
 
|| Draw => Passive Components => Switch
 
|| We also need a Switch to turn ON and OFF the circuit.
 
|| We also need a Switch to turn ON and OFF the circuit.
Line 163: Line 157:
  
 
Drag and connect the switch next to the '''Ammeter'''.
 
Drag and connect the switch next to the '''Ammeter'''.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
||  
 
||  
 
|| We have all the required components in the work area.  
 
|| We have all the required components in the work area.  
  
 
Now let's connect the components using wires.
 
Now let's connect the components using wires.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Add Wire
 
|| Add Wire
  
Line 179: Line 173:
  
 
This dot represents a junction which also implies the connection is right.
 
This dot represents a junction which also implies the connection is right.
−
|-  
+
 
 +
|- style="border:1pt solid #000000;padding:0.176cm;"
 
||  
 
||  
 
|| Connect the positive end of the V1 power supply to the resistor as shown.
 
|| Connect the positive end of the V1 power supply to the resistor as shown.
Line 185: Line 180:
 
Create a wire connection between the '''Switch '''and V1 power supply as shown.
 
Create a wire connection between the '''Switch '''and V1 power supply as shown.
  
−
Observe the yellow dots indicating the current flow direction in the circuit.
+
|- style="border:1pt solid #000000;padding:0.176cm;"
−
|-  
+
 
||  
 
||  
  
−
|| Observe the current reading across the Ammeter.  
+
'''Resistor Values.png - highlight the right bottom value'''
 +
 
 +
<div style="color:#ff0000;"></div>
 +
|| Observe the yellow dots indicating the current flow direction in the circuit.
 +
 
 +
Observe the current reading across the Ammeter.  
  
 
Place the cursor on the resistor component.
 
Place the cursor on the resistor component.
  
−
You will see its characteristics at the right bottom of the screen.
+
You will see its characteristics at the bottom right of the screen.
  
 
Current flowing through the resistor denoted by I is 1.5 milliAmpere.
 
Current flowing through the resistor denoted by I is 1.5 milliAmpere.
Line 204: Line 203:
  
 
Note the current readings in milliamperes (mA). Convert to amperes (A) and record the current accordingly.
 
Note the current readings in milliamperes (mA). Convert to amperes (A) and record the current accordingly.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| '''Slide:'''
 
|| '''Slide:'''
  
 
'''Ohm’s Law: Relationship I,V,R'''
 
'''Ohm’s Law: Relationship I,V,R'''
−
 
 
'''I = V / R'''
 
'''I = V / R'''
−
 
 
'''V = I x R'''
 
'''V = I x R'''
−
 
 
'''R = V / I'''
 
'''R = V / I'''
−
|| Ohm's Law helps us find the third parameter when we know any two parameters:*To calculate the current, the formula becomes,  
+
|| Ohm's Law helps us find the third parameter when we know any two parameters:
 +
* To calculate the current, the formula becomes, </div>
  
−
'''I = V/R'''*To calculate the voltage, the formula becomes,  
+
'''I = V/R'''
 +
* To calculate the voltage, the formula becomes, </div>
  
−
'''V = IxR'''*To calculate the resistor, the formula becomes,  
+
'''V = IxR'''
 +
* To calculate the resistance, the formula becomes, </div>
  
 
'''R = V/I'''
 
'''R = V/I'''
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
||  
 
||  
 
|| This brings us to the end of the tutorial. Let us summarize.
 
|| This brings us to the end of the tutorial. Let us summarize.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| '''Slide summary'''
 
|| '''Slide summary'''
 
|| In this tutorial, we learnt how
 
|| In this tutorial, we learnt how
−
*Voltage, resistance, and current are related in a circuit.
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Voltage, resistance, and current are related in a circuit.</div>
−
*Ohm's Law helps to understand this relationship.
+
* <div style="margin-left:1.27cm;margin-right:0cm;">Ohm's Law helps to understand this relationship.</div>
  
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Assignment 1
 
|| Assignment 1
 
|| As an assignment do the following
 
|| As an assignment do the following
  
−
#In the same circuit, change the resistor value from 1K ohms to 10K Ohms
+
# <div style="margin-left:1.27cm;margin-right:0cm;">In the same circuit, change the resistor value from 1K ohms to 10K Ohms</div>
  
 
'''Tips:'''
 
'''Tips:'''
  
 
To change the value of any component, select the component and right click and select edit option to change the values.
 
To change the value of any component, select the component and right click and select edit option to change the values.
−
|-
+
|- style="border:1pt solid #000000;padding:0.176cm;"
 
|| Assignment 2
 
|| Assignment 2
  
−
||  
+
<div style="color:#ff0000;">'''Assignment 2 - Circuit.png'''</div>
−
#Do the circuit connection as shown in the image, i.e. use both A '''and B power supply in the circuit'''
+
 
−
#'''Keep the resistor value as 10K Ohms'''
+
|| As an assignment
−
#'''Ca'''lculate the current (in mA) flowing through the circuit.
+
# <div style="margin-left:1.27cm;margin-right:0cm;">Do the circuit connection as shown in the image, i.e. use both A and B power supply in the circuit</div>
 +
# <div style="margin-left:1.27cm;margin-right:0cm;">Keep the resistor value as 10K Ohms</div>
 +
# <div style="margin-left:1.27cm;margin-right:0cm;">Calculate the current (in mA) flowing through the circuit.</div>
 +
 
  
 
|- style="border:1pt solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.206cm;padding-right:0.191cm;"
 
|- style="border:1pt solid #000000;padding-top:0cm;padding-bottom:0cm;padding-left:0.206cm;padding-right:0.191cm;"

Revision as of 16:09, 12 October 2023

Visual Cue Narration
Slide:1 Welcome to the spoken tutorial on Ohm’s Law using circuitjs simulator.
Slide 2:

Learning Objective

In this tutorial, we will learn how
  • Voltage, resistance, and current are related in a circuit.
  • Ohm's Law helps to understand this relationship.
Slide 3

System Requirement

To record this tutorial, I am using:
  • Ubuntu Linux 20.04 OS
  • CircuitJS Application
Slide 4:

Prerequisite

To follow this tutorial, you should have a basic knowledge of
  • Electrical circuits
Slide 5:

What is Ohm's Law?

Ohm’s Law equation is V = I x R.

V is the voltage across the conductor measured in Volts.

I is the current flowing through the conductor measured in Amperes.

R is the resistance provided by the conductor measured in Ohms.

Show the diagram

Ohms’ law circuit

Ohm’s Law Circuit.png

To verify Ohm’s law we will use this circuit for demonstration.

For this experiment, we need

  • 4 DC Voltage Supply of 1.5 Volts
  • 1 Resistor
  • Voltmeter
  • Ammeter
  • Switch
We will learn how to create the same circuit in Circuitjs simulator and understand the concepts.
Let us open the circuitjs interface as shown.
Click on the Draw option

Browse through the menu

In the menu bar, click on File and select New Blank Circuit.

Click on the Draw option in the menu bar.

Now, select Add resistor.

Click and drag to draw a resistor as shown.

Show the path to find the DC power supply and draw it

Draw => Inputs and Sources => Add Voltage Terminal

Now, let us add the DC power supply to the circuit.

Click on Draw, then go to Inputs and Sources, and select Add Voltage Source (2-terminal).

Draw the voltage source above the resistor.

Make sure that positive end of the voltage source is on the left side.

In this case, we need to change the direction of the voltage source.

Right-click on the voltage source component and select Swap Terminals.

You will notice the polarity of the voltage source changes.

We want a DC voltage source of 1.5 volts, but it's set to 5 volts by default.

To change it, right-click the voltage source.

Then select the edit option.

A pop-up window will open.

Delete the value 5 and type 1.5 and click the OK button to save the change.

We need three more of these same DC voltage sources connected one after another.

Right-click on the DC voltage source, and select the Duplicate option.

Do this, two more times to make three copies of the DC voltage source.

Move and link all four DC voltage sources together in a row as shown.

Make sure the parts don't overlap when you connect them.

Next let us label these voltage sources.

Click on the Draw button, then go to Output and Labels and select

Add Text.

Move the cursor to the working space and click and drag.

A default hello text will appear.

Double click on the hello word to edit the text to V1 and click on the OK button.

Repeat the same steps and label the other voltage sources as V2,V3 and V4.

Arrange the label for a neat look.

Draw => Outputs and Labels => Ammeter To measure the current in the circuit, we'll use Ammeter.

Click on the Draw button, then go to Output and Labels and select Add ammeter.

Now, connect the ammeter to the resistor in the circuit.

Draw => Outputs and Labels => Voltmeter / Scope probe Let us add a voltmeter across the resistor to see the amount of voltage passing through it.


Click on Draw and select Outputs and Labels.

Then select Add Voltmeter/Scope probe.

Place it below the resistor as shown.

Draw => Passive Components => Switch We also need a Switch to turn ON and OFF the circuit.

In the Draw menu, select Passive components and Add switch.

Drag and connect the switch next to the Ammeter.

We have all the required components in the work area.

Now let's connect the components using wires.

Add Wire

Draw => Add wire

From the Draw menu, select Add wire.

Connect the resistor and voltmeter as shown.

You will notice a white dot at the end points of the connection.

This dot represents a junction which also implies the connection is right.

Connect the positive end of the V1 power supply to the resistor as shown.

Create a wire connection between the Switch and V1 power supply as shown.

Resistor Values.png - highlight the right bottom value

Observe the yellow dots indicating the current flow direction in the circuit.

Observe the current reading across the Ammeter.

Place the cursor on the resistor component.

You will see its characteristics at the bottom right of the screen.

Current flowing through the resistor denoted by I is 1.5 milliAmpere.

The voltage across the resistor denoted by Vd is 1.5 Volts.

You can see the resistor value denoted by R is 1K Ohm.

Make sure to write down the readings of each component in the circuit.

Note the current readings in milliamperes (mA). Convert to amperes (A) and record the current accordingly.

Slide:

Ohm’s Law: Relationship I,V,R I = V / R V = I x R R = V / I

Ohm's Law helps us find the third parameter when we know any two parameters:
  • To calculate the current, the formula becomes, </div>

I = V/R

  • To calculate the voltage, the formula becomes, </div>

V = IxR

  • To calculate the resistance, the formula becomes, </div>

R = V/I

This brings us to the end of the tutorial. Let us summarize.
Slide summary In this tutorial, we learnt how
  • Voltage, resistance, and current are related in a circuit.
  • Ohm's Law helps to understand this relationship.
Assignment 1 As an assignment do the following
  1. In the same circuit, change the resistor value from 1K ohms to 10K Ohms

Tips:

To change the value of any component, select the component and right click and select edit option to change the values.

Assignment 2
Assignment 2 - Circuit.png
 As an assignment
  1. Do the circuit connection as shown in the image, i.e. use both A and B power supply in the circuit
  2. Keep the resistor value as 10K Ohms
  3. Calculate the current (in mA) flowing through the circuit.


Slide :About Spoken Tutorial project The video at the following link summarizes the Spoken Tutorial project.

Please download and watch it.

Slide :Spoken Tutorial workshops The Spoken Tutorial Project Team conducts workshops and gives certificates.

For more details, please write to us.

Slide : Forum for specific questions Please post your timed queries in this forum.
Acknowledgement Spoken Tutorial project was established by the Ministry of Education(MoE), Govt of India
Thank you This tutorial has been contributed by FOSSEE and Spoken Tutorial Project, IIT Bombay.

Thanks for watching.

Contributors and Content Editors

Madhurig, Nirmala Venkat

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