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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.

2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

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

Ics Part 2 Physics Chapter 15 Test
ic

2nd Year Physics Chapter 15 Online MCQ Test for 12th Class Physics Chapter 15 (Electromagnetic Induction)

Sr. # Questions Answers Choice
1 Self inductance of a long solenoid is given by
  • A.
  • B.
  • C.
  • D. None of the above
2 the core of transformer is laminated so reduce.
  • A. Magnetic loss
  • B. Hysteresis loss
  • C. Eddy current loss
  • D. Electric loss
3 The mutual inductance of the coils depends upon.
  • A. Stiffness of the coils
  • B. Density of coils
  • C. Material of coils
  • D. Geometry of the coils
4 The motional emf developed in a conduction depends upon.
  • A. Length
  • B. Orientation
  • C. Magnetic field
  • D. All of the above
5 The device in which induced emf is statically induced emf is:
  • A. Transforms
  • B. AC generator
  • C. Alevator
  • D. Dynamo
6 When a motor is over loaded then the magnitude of back emf.
  • A. Increases
  • B. Decreases
  • C. Remain constant
  • D. Zero
7 Commutator was invented in
  • A. 1834
  • B. 1820
  • C. 1840
  • D. 1835
8 Which of the following quantities remain constant in step up transformer?
  • A. Current
  • B. Voltage
  • C. Power
  • D. Heat
9 If the coil is wound on iron core, the flux through it.
  • A. Decreases
  • B. Becomes zero
  • C. Increases
  • D. Remains constant
10 Electromagnetic induction is exactly according to law of:
  • A. Momentum
  • B. Charge
  • C. Energy
  • D. Mass

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