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

Sr. # Questions Answers Choice
1 When a conductor moves across a magnetic field an emf is set up this emf is called.
  • A. Variable emf
  • B. Constant emf
  • C. Back emf
  • D. Induced emf
2 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
3 If D.C. input for step up transformer, the output is
  • A. Zero
  • B. High
  • C. Low
  • D. May be high or low
4
  • A. Lenz's law
  • B. Faraday's law
  • C. Ampere's law
  • D. None of these
5 The north pole of a magnet is brought near a metallic ring. The direction of induced current in the ring will be:
  • A. Antoclockwise
  • B. Clockwise
  • C. First Clockwise and then Antoclockwise
  • D. First anticlockwise and then Clockwise
6 When motor is just started, back emf is almost.
  • A. Maximum
  • B. Zero
  • C. Minimum
  • D. Infinite
7 Commentator was invented by
  • A. Henry
  • B. Ousted
  • C. Maxwell
  • D. William sturgeon
8 Mutual induction has a practical role in the performance of the.
  • A. Radio choke
  • B. Transformers
  • C. A.C. Generator
  • D. D.C. Generator
9 Lenz's law was given by Heinrich lenz in:
  • A. 1894
  • B. 1904
  • C. 1854
  • D. 1834
10 The induced emf in a coil is proportional to:
  • A. Magnetic flux through the coil
  • B. Rate of change of Magnetic flux through the coil
  • C. Area of the coil
  • D. Product of magnetic flux flux and area of the coil

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  • Sania Saeed

    16 Nov 2017

    ye log poore number nai dete jan bhooj kar

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  • A

    Ayesha

    11 May 2017

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

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