Difference between revisions of "ExpEYES/C3/Steady-state-response-of-circuits/English-timed"

From Script | Spoken-Tutorial
Jump to: navigation, search
Line 23: Line 23:
 
* '''ExpEYES '''version '''3.1.0'''
 
* '''ExpEYES '''version '''3.1.0'''
  
* '''Ubuntu Linux''' OS version '''14.10'''
+
* '''Ubuntu Linux''' OS version '''14.10'''.
  
 
|-
 
|-
Line 30: Line 30:
  
 
* '''Basic Physics ''' and
 
* '''Basic Physics ''' and
 
 
*'''ExpEYES Junior''' interface.
 
*'''ExpEYES Junior''' interface.
 
If not, for relevant tutorials in '''ExpEYES''', please visit our website.
 
If not, for relevant tutorials in '''ExpEYES''', please visit our website.
Line 44: Line 43:
 
|-
 
|-
 
|01:02
 
|01:02
| Now we will define '''phase shift'''. '''Phase shift''' is a relative change in the '''phase''' of a waveform.
+
| Now, we will define '''phase shift'''. '''Phase shift''' is a relative change in the '''phase''' of a waveform.
  
 
|-
 
|-
Line 59: Line 58:
 
'''A1''' is connected to '''SINE'''.
 
'''A1''' is connected to '''SINE'''.
 
'''1uF'''(one '''micro farad''') '''capacitor''' is connected between '''SINE''' and '''A2'''.
 
'''1uF'''(one '''micro farad''') '''capacitor''' is connected between '''SINE''' and '''A2'''.
'''1K ''' resistor is connected between '''A2''' and ground '''(GND)'''.
+
'''1K''' resistor is connected between '''A2''' and ground '''(GND)'''.
  
 
|-
 
|-
 
|01:36
 
|01:36
|This is the circuit diagram.
+
|This is the '''circuit diagram.'''
  
 
|-
 
|-
Line 89: Line 88:
 
|-
 
|-
 
|02:14
 
|02:14
| '''Study of AC Circuits''' and '''Schematic''' windows open. '''Schematic''' window shows the circuit diagram.
+
| '''Study of AC Circuits''' and '''Schematic''' windows open. '''Schematic''' window shows the '''circuit diagram'''.
  
 
|-
 
|-
Line 97: Line 96:
 
|-
 
|-
 
|02:30
 
|02:30
|'''Black''' trace is applied total voltage at '''A1'''.
+
|'''Black''' trace is applied voltage at '''A1'''.
  
 
|-
 
|-
 
|02:35
 
|02:35
| '''Red''' trace is voltage across the resistor.
+
| '''Red''' trace is the voltage across the '''resistor'''.
  
 
|-
 
|-
 
|02:39
 
|02:39
| '''Blue''' trace is voltage across the capacitor.
+
| '''Blue''' trace is the voltage across the '''capacitor'''.
  
 
|-
 
|-
 
|02:44
 
|02:44
| On right side of the window, we can see '''Phasor plot'''.
+
| On the right side of the window, we can see '''Phasor plot'''.
  
 
|-
 
|-
 
|02:49
 
|02:49
| On the plot, '''positive X axis''' represents '''voltage''' across '''resistor'''.
+
| On the plot, '''positive X-axis''' represents '''voltage''' across '''resistor'''.
  
 
|-
 
|-
 
|02:56
 
|02:56
| '''Positive Y axis''' represents voltage across '''inductor'''.
+
| '''Positive Y-axis''' represents voltage across '''inductor'''.
  
 
|-
 
|-
 
|03:02
 
|03:02
| '''Negative Y axis''' represents voltage across '''capacitor'''.
+
| '''Negative Y-axis''' represents voltage across '''capacitor'''.
  
 
|-
 
|-
Line 141: Line 140:
 
|-
 
|-
 
|03:44
 
|03:44
| Change '''frequency''' value to '''149.4Hz ''' and '''Inductor''' value to '''0(zero) mH(milli henry)'''.
+
| Change the '''frequency''' value to '''149.4Hz ''' and '''Inductor''' value to '''0 mH (zero milli henry)'''.
  
 
|-
 
|-
Line 153: Line 152:
 
|-
 
|-
 
|04:11
 
|04:11
|'''Dphi''' is '''phase shift'''. Calculated '''Phase shift''' is '''46.8 deg'''.
+
|'''Dphi''' is '''phase shift'''. Calculated '''Phase shift''' is '''46.8 degrees'''.
  
 
|-
 
|-
 
|04:20
 
|04:20
|Let us calculate '''Phase shift Φ = arctan(XC/XR)''', where '''XC=1/2πfC.'''
+
|Let us calculate phase shift value using the formula: '''Φ (Phase shift) = arctan(XC/XR)''', where '''XC=1/2πfC.'''
  
Here '''f''' is frequency in hertz, '''C''' is capacitance in farads. Calculated value of phase shift is '''46.81 deg'''.
+
Here '''f''' is frequency in hertz, '''C''' is '''capacitance''' in '''farads'''. Calculated value of phase shift is '''46.81 deg'''.
  
 
|-
 
|-
 
|04:48
 
|04:48
| Now we will study '''AC phase shift''' in '''RL circuit'''.
+
| Now, we will study '''AC phase shift''' in '''RL circuit'''.
  
 
|-
 
|-
 
|04:52
 
|04:52
|In this experiment, we will measure '''phase shift''' when capacitor is replaced by an inductor.
+
|In this experiment, we will measure '''phase shift''' when '''capacitor''' is replaced by an '''inductor'''.
  
 
|-
 
|-
Line 176: Line 175:
 
|-
 
|-
 
|05:11
 
|05:11
|'''560 Ohm''' resistor is connected between '''A2''' and '''GND'''. This is the circuit diagram.
+
|'''560 Ohm''' resistor is connected between '''A2''' and '''GND'''. This is the '''circuit diagram'''.
  
 
|-
 
|-
Line 192: Line 191:
 
|-
 
|-
 
|05:38
 
|05:38
| On right side of the window, we can see '''Phasor plot'''.
+
| On the right side of the window, we can see '''Phasor plot'''.
  
 
|-
 
|-
 
|05:43
 
|05:43
|You can see that '''Phase Shift''' is '''-2.7 deg'''(minus 2.7 degree). Notice the values of frequency and voltages.
+
|You can see that '''Phase Shift''' is '''-2.7 deg''' (minus 2.7 degree). Notice the values of frequency and voltages.
  
 
|-
 
|-
Line 202: Line 201:
 
| Change the value of:  
 
| Change the value of:  
  
* Frequency to '''149.4Hz(hertz)'''
+
* '''Frequency''' to '''149.4Hz(hertz)'''
  
* Resistance to''' 1360 Ohm'''
+
* '''Resistance''' to''' 1360 Ohm'''
  
* Capactance to '''0 uF(micro farad)''' and
+
* '''Capactance''' to '''0 uF(micro farad)''' and
  
* inductance to '''78 mH(milli henry)'''.
+
* '''inductance''' to '''78 mH (milli henry)'''.
  
 
|-
 
|-
 
|06:11
 
|06:11
| Click on '''Calculate XL, XC and Angle''' button to view the values. Calculated phase shift value is '''-3.1 deg'''(minus 3.1 degree).
+
| Click on '''Calculate XL, XC and Angle''' button to view the values. Calculated phase shift is '''-3.1 deg'''(minus 3.1 degree).
  
 
|-
 
|-
Line 220: Line 219:
 
|-
 
|-
 
|06:27
 
|06:27
| '''Phase shift Φ = arctan(XL/XR)''', where '''XL=2πfL'''. Here '''L''' is '''inductance.'''
+
| '''Phase shift (Φ) = arctan(XL/XR)''', where '''XL=2πfL'''. Here '''L''' is '''inductance.'''
 
|-
 
|-
 
|06:41
 
|06:41
|External resistance value is '''560 Ohm''' and resistance of the coil is '''800 Ohm'''. Total resistance=( 560 Ohm + 800 Ohm)=1360 Ohm.
+
|External resistance value is '''560 Ohm''' and resistance of the coil is '''800 Ohm'''. Total resistance =( 560 Ohm + 800 Ohm)= 1360 Ohm.
Calculated value of the''' phase shift '''is''' 3.08deg'''.
+
Calculated value of the''' phase shift '''is''' 3.08degrees'''.
  
 
|-
 
|-
 
|07:05
 
|07:05
|Now we will study '''AC phase shift ''' in '''LCR circuit'''.
+
|Now, we will study '''AC phase shift ''' in '''LCR circuit'''.
  
 
|-
 
|-
Line 264: Line 263:
 
|-
 
|-
 
|07:59
 
|07:59
| '''Study of AC Circuits''' window displays three sine waves with different voltages.
+
| '''Study of AC Circuits''' window displays three '''sine''' waves with different voltages.
  
 
|-
 
|-
Line 279: Line 278:
 
|-
 
|-
 
|08:33
 
|08:33
|Phase Shift '''43.1 deg'''(degree).
+
|Phase Shift is '''43.1 deg'''(degree).
  
 
|-
 
|-
Line 287: Line 286:
 
* frequency to '''149.4Hz ''' and  
 
* frequency to '''149.4Hz ''' and  
  
* inductance to '''78mH(milli Henry)'''.
+
* inductance to '''78mH (milli Henry)'''.
  
 
|-
 
|-
Line 299: Line 298:
 
|-
 
|-
 
|09:04
 
|09:04
| '''Phase shift Φ =arctan(XC – XL/XR)'''.
+
| '''Phase shift Φ = arctan(XC – XL/XR)'''.
  
 
|-
 
|-
 
|09:10
 
|09:10
|External resistance value is 1000 Ohm. Calculated value of the '''phase shift ''' is '''44.77 deg'''.
+
|External resistance value is '''1000 Ohm'''. Calculated value of the '''phase shift ''' is '''44.77 degrees'''.
  
 
|-
 
|-
Line 313: Line 312:
 
|In this tutorial, we have studied-
 
|In this tutorial, we have studied-
  
* AC phase shift in RC, RL and LCR circuits and
+
* AC phase shift in '''RC, RL''' and '''LCR''' circuits and
  
* Calculated the Phase shift values.
+
* Calculated the phase shift values.
  
 
|-
 
|-
 
|09:33
 
|09:33
 
| As an assignment,  
 
| As an assignment,  
Study AC Phase shift of RL and LCR circuits, using different Resistance & capacitance values.
+
study AC Phase shift of RL and LCR circuits, using different resistance & capacitance values.
  
 
|-
 
|-
Line 328: Line 327:
 
|-
 
|-
 
|09:52
 
|09:52
| We conduct workshops using Spoken Tutorials and give certificates. Please contact us.
+
| We conduct workshops using '''Spoken Tutorials''' and give certificates. Please contact us.
  
 
|-
 
|-
 
|09:59
 
|09:59
| The Spoken Tutorial Project is funded by NMEICT, MHRD Government of India.
+
| The Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
  
 
|-
 
|-

Revision as of 18:48, 16 May 2016

Time Narration
00:01 Hello everyone. Welcome to this tutorial on Steady State Response of Circuits.
00:07 In this tutorial, we will study:
  • AC phase shift in RC, RL and LCR circuits.
  • Calculate Phase shift values and
  • Show circuit diagrams for our experiments.
00:24 Here, I am using:
  • ExpEYES version 3.1.0
  • Ubuntu Linux OS version 14.10.
00:34 To follow this tutorial, you should be familiar with:
  • Basic Physics and
  • ExpEYES Junior interface.

If not, for relevant tutorials in ExpEYES, please visit our website.

00:50 Let's first define Steady state response of a circuit.
00:55 Steady state response is a period of observance when a circuit is in equilibrium condition.
01:02 Now, we will define phase shift. Phase shift is a relative change in the phase of a waveform.
01:10 Let us now study AC phase shift in RC circuit.
01:14 In this experiment, we will measure voltage variation and phase shift in the circuit.
01:20 To perform this experiment,

A1 is connected to SINE. 1uF(one micro farad) capacitor is connected between SINE and A2. 1K resistor is connected between A2 and ground (GND).

01:36 This is the circuit diagram.
01:40 Let's see the result on the Plot window.
01:44 On the Plot window, click on A1 and drag to CH1.

A1 is assigned to CH1.

01:54 Click on A2 and drag to CH2.

A2 is assigned to CH2.

02:02 Move the mSec/div slider to obtain the Sine waves.
02:08 Click on EXPERIMENTS button. Select Study of AC circuits.
02:14 Study of AC Circuits and Schematic windows open. Schematic window shows the circuit diagram.
02:24 Study of AC Circuits window displays three traces with different voltages.
02:30 Black trace is applied voltage at A1.
02:35 Red trace is the voltage across the resistor.
02:39 Blue trace is the voltage across the capacitor.
02:44 On the right side of the window, we can see Phasor plot.
02:49 On the plot, positive X-axis represents voltage across resistor.
02:56 Positive Y-axis represents voltage across inductor.
03:02 Negative Y-axis represents voltage across capacitor.
03:08 Frequency of the waves is 149.4Hz.

Total voltage at A1 is 3.54V.

Voltage across R at A2 is 2.50V.

Voltage at A1-A2 is 2.43V.

Phase Shift is 43.1 deg(degree).

03:34 Calculator shows default values of frequency, resistance, capacitance and inductance.
03:44 Change the frequency value to 149.4Hz and Inductor value to 0 mH (zero milli henry).
03:53 Click on Calculate XL, XC and Angle button.
03:59 The values of XC, XL and phase angle are displayed. XC and XL are Impedences of capacitance and inductance.
04:11 Dphi is phase shift. Calculated Phase shift is 46.8 degrees.
04:20 Let us calculate phase shift value using the formula: Φ (Phase shift) = arctan(XC/XR), where XC=1/2πfC.

Here f is frequency in hertz, C is capacitance in farads. Calculated value of phase shift is 46.81 deg.

04:48 Now, we will study AC phase shift in RL circuit.
04:52 In this experiment, we will measure phase shift when capacitor is replaced by an inductor.
04:59 To perform this experiment, A1 is connected to SINE.

A 3000 turns coil is connected between SINE and A2.

05:11 560 Ohm resistor is connected between A2 and GND. This is the circuit diagram.
05:20 Let's see the result on the Plot window.
05:24 Two sine waves are generated.
05:27 Click on EXPERIMENTS button, select Study of AC circuits. Study of AC Circuits window opens.
05:38 On the right side of the window, we can see Phasor plot.
05:43 You can see that Phase Shift is -2.7 deg (minus 2.7 degree). Notice the values of frequency and voltages.
05:53 Change the value of:
  • Frequency to 149.4Hz(hertz)
  • Resistance to 1360 Ohm
  • Capactance to 0 uF(micro farad) and
  • inductance to 78 mH (milli henry).
06:11 Click on Calculate XL, XC and Angle button to view the values. Calculated phase shift is -3.1 deg(minus 3.1 degree).
06:23 Let us calculate phase shift value using the formula.
06:27 Phase shift (Φ) = arctan(XL/XR), where XL=2πfL. Here L is inductance.
06:41 External resistance value is 560 Ohm and resistance of the coil is 800 Ohm. Total resistance =( 560 Ohm + 800 Ohm)= 1360 Ohm.

Calculated value of the phase shift is 3.08degrees.

07:05 Now, we will study AC phase shift in LCR circuit.
07:10 We will measure phase shift when inductor & capacitor are connected in the circuit.
07:17 To perform this experiment, SINE is connected to A1.
07:21 Coil and 1 uF(1 micro farad) capacitor are connected between A1 and A2.
07:28 1K resistor is connected between A2 and ground (GND). This is the circuit diagram.
07:36 Let's see the result on the Plot window.
07:39 Two sine waves are generated with a phase shift.
07:43 Click on EXPERIMENTS button, select Study of AC Circuits.
07:50 Study of AC Circuits and Schematic windows open. Schematic window shows the circuit diagram.
07:59 Study of AC Circuits window displays three sine waves with different voltages.
08:06 On right side of the window, we can see Phasor plot.
08:11 Frequency of the waves is 149.4Hz,

Total voltage at A1 is 3.53V, Voltage across R at A2 is 2.50V, Voltage of LC across A1-A2 is 2.42V.

08:33 Phase Shift is 43.1 deg(degree).
08:37 Change the value of:
  • frequency to 149.4Hz and
  • inductance to 78mH (milli Henry).
08:48 Click on Calculate XL, XC and Angle button to view the values. Calculated phase shift value is 44.8 deg.
09:00 Let us calculate Phase shift value using the formula.
09:04 Phase shift Φ = arctan(XC – XL/XR).
09:10 External resistance value is 1000 Ohm. Calculated value of the phase shift is 44.77 degrees.
09:20 Let us summarize.
09:22 In this tutorial, we have studied-
  • AC phase shift in RC, RL and LCR circuits and
  • Calculated the phase shift values.
09:33 As an assignment,

study AC Phase shift of RL and LCR circuits, using different resistance & capacitance values.

09:44 This video summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it.
09:52 We conduct workshops using Spoken Tutorials and give certificates. Please contact us.
09:59 The Spoken Tutorial Project is funded by NMEICT, MHRD, Government of India.
10:06 This tutorial is contributed by Kaushik Datta and Madhuri Ganapathi.

Thank you for joining.

Contributors and Content Editors

Pratik kamble, Sandhya.np14