Faraday’s Law NEET Questions

Physics - Electromagnetic Induction and Alternating Currents

Faraday’s Law MCQ Questions


13.
The induced emf in a conductor moving perpendicular to a uniform magnetic field depends on

NEET - 2024

A.
Only the velocity of the conductor
B.
Only the strength of the magnetic field
C.
Only the length of the conductor
D.
All of the above
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ANSWER :
D. All of the above
14.
A coil of 50 turns experiences a change in magnetic flux of 0.02 Wb in 0.1 seconds. What is the induced emf?
A.
1 V
B.
10 V
C.
20 V
D.
100 V
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ANSWER :
C. 20 V
15.
Which of the following is NOT a way to induce an emf in a circuit?
A.
Moving a magnet near the coil
B.
Changing the magnetic flux
C.
Varying the area of the loop in a magnetic field
D.
Increasing the resistance in the circuit
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ANSWER :
D. Increasing the resistance in the circuit
16.
Which physical quantity is directly proportional to the induced emf according to Faraday’s law?

NEET - 2017

A.
Area of the coil
B.
Rate of change of magnetic flux
C.
Velocity of coil
D.
Resistance of the coil
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ANSWER :
B. Rate of change of magnetic flux
17.
What happens to the induced emf if the rate of change of magnetic flux is doubled?
A.
Doubles
B.
Remains the same
C.
Halves
D.
Becomes zero
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ANSWER :
A. Doubles
18.
If a bar magnet is moved away from a coil, the induced current will:
A.
Increase
B.
Decrease
C.
Remain unchanged
D.
Reverse direction
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ANSWER :
A. Increase