 Electromagnetic Induction MCQs

For your better entry test preparation and better Physics MCQs preparation, in this section, we are going to post Electromagnetic Induction MCQs. Electromagnetic induction which is also known as magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is generally credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday’s law of induction.

Electromagnetic Induction MCQs

1. The practical illustration of the phenomenon of mutual induction is
A. A.C generator
B. D.C dynamo
C. Induction coil
D. Transformer

2. Weber is the unit of
A. Magnetic field intensity
B. Magnetic induction
C. Magnetic flux
D. Self-inductance

3. Current produced by moving the loop of wire across a magnetic field is called
A. A.C current
B. D.C current
C. Induced current
D. Mean square current

4. Emf induced in a circuit according to Faraday’s law depends on the
A. Maximum magnetic flux
B. The rate of change of magnetic flux
C. Change in magnetic flux
D. Initial magnetic flux

5. Emf generated by A.C dynamo depends upon
A. Number of turns in the coil
B. Magnetic field strength
C. Frequency of rotation
D. All of above

6. An alternating current or voltage
A. Fluctuates off and on
B. Varies in magnitude alone
C. Changes its direction again and again
D. Changes its magnitude continuously and reverses its direction of flow after regularly recurring intervals

7. A dynamo converts
A. Mechanical energy into electrical energy
B. Electrical energy into mechanical energy
C. Magnetic energy into mechanical energy
D. Magnetic energy into electrical energy

8. Which one of the following functions like a motor?
A. Galvanometer
B. Ammeter
C. Voltmeter
D. All of above

9. A.C cannot be used for
A. Producing heat
B. Producing light
C. Magnetizing and electroplating
D. All the above