1. The practical illustration of the phenomenon of mutual induction is
A. A.C generator
B. D.C dynamo
C. Induction coil
D. Transformer
✅ The correct answer is option D.
Electromagnetic Induction MCQs
2. Weber is the unit of
A. Magnetic field intensity
B. Magnetic induction
C. Magnetic flux
D. Self-inductance
✅ The correct answer is option C.
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
✅ The correct answer is option C.
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
✅ The correct answer is option B.
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
✅ The correct answer is option D.
6. 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
✅ The correct answer is option A.
7. Which one of the following functions like a motor?
A. Galvanometer
B. Ammeter
C. Voltmeter
D. All of above
✅ The correct answer is option D.
8. A.C cannot be used for
A. Producing heat
B. Producing light
C. Magnetizing and electroplating
D. All the above
✅ The correct answer is option C.
9. Which of the following works on torque on the current carrying conductor placed in magnetic field.
A. Galvanometer
B. Ammeter
C. Voltmeter
D. All of the above
✅ The correct answer is option D.