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15th Chapter

### 12th Class Physics Chapter 15 Test

Here you can prepare 12th Class Physics Chapter 15 Electromagnetic Induction Test. Click the button for 100% free full practice test.

## Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

This online test contains MCQs about following topics:.

- Induced EMF and Induced Current - Motional EMF - Faraday's Law and Induced EMF - Lenz's Law and Direction of Induced EMF - Mutual Induction - Self Induction - Energy Stored in an Inductor - Alternating Current Generator - D.C. Generator - Back Motor Effect in Generator - D.C. Motor - Back EMF Effect in Motors - Transformer

FSC Part 2 Physics Ch 15 Test

### Second Year Physics Chapter 15 Online MCQ Test for 2nd Year Physics Chapter 15 Electromagnetic Induction Preparation

1 The device in which induced emf is statically induced emf is:
• A. Transforms
• B. AC generator
• C. Alevator
• D. Dynamo
2 split rings are used in
• A. A.C. generator
• B. A.C. motor
• C. Transformer
• D. D.C. motor
3 Output of D.C. motor is
• A. A.C. energy
• B. Mechanical energy
• C. Chemical energy
• D. D.C. energy
4 The working principle of transformer is.
• A. Self induction
• C. Mutual induction
• D. Electromagnetic induction
5 When a motor is over loaded then the magnitude of back emf.
• A. Increases
• B. Decreases
• C. Remain constant
• D. Zero
6 Energy stored in inductor is.
• A. 1/2 L I<sup>2</sup>
• B. 1/2 LI
• C. 1/2 L2I
• D. 1/2 L2I2
7 The application of mutual induction is a.
• A. D.C. motor
• C. Television
• D. Transformer
8 A 50 mH coil carries a current of 2.0 a , then energy stored in tis magnetic field is.
• A. 0.1 J
• B. 10 J
• C. 100 J
• D. 1000 J
9 1 Henry =
• A. VSA<sup>-1</sup>
• B. VS<sup>-1</sup>A<sup>-1</sup>
• C. V<sup>-1</sup>SA
• D. VSA<sup>-2</sup>
10 The direction of induced current is always so as to oppose the change which causes the current, this is the statement of
• A. Lenz's law
• C. Ampere's law
• D. Coulomb's law

### Top Scorers of Physics Fsc Part 2 Chapter 4 Online Test

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#### Ramis Shahid

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• #### Sania Saeed

16 Nov 2017

ye log poore number nai dete jan bhooj kar

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#### Ayesha

11 May 2017

2 mcqs k ans ghalat hain irrespective k wo book ki statements hain

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