Lenz’s Law NEET Questions

Physics - Electromagnetic Induction and Alternating Currents

Lenz’s Law MCQ Questions


7.
What is the significance of the negative sign in Faraday’s law?
A.
Induced current is maximum
B.
Induced EMF opposes the change in flux
C.
Current leads voltage
D.
Electric field opposes motion
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ANSWER :
B. Induced EMF opposes the change in flux
8.
Which of the following best explains Lenz’s law?
A.
Change in flux induces an opposing EMF
B.
Magnetic field induces charge motion
C.
Electric field opposes charge motion
D.
Current always flows in one direction
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ANSWER :
A. Change in flux induces an opposing EMF
9.
Lenz’s law is a consequence of

NEET - 2015

A.
Conservation of energy
B.
Conservation of charge
C.
Conservation of momentum
D.
Conservation of mass
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ANSWER :
A. Conservation of energy
10.
Which of the following correctly describes Lenz’s law?

NEET - 2024

A.
The induced current opposes the change in magnetic flux
B.
The induced current supports the change in magnetic flux
C.
The induced current is always in the direction of applied field
D.
Induced current does not depend on magnetic flux
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ANSWER :
A. The induced current opposes the change in magnetic flux
11.
A magnet is dropped through a vertical copper pipe. What happens to its motion?
A.
Falls with constant speed
B.
Falls faster than normal
C.
Falls slower than normal
D.
Falls at normal acceleration
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ANSWER :
C. Falls slower than normal
12.
If the speed of a moving conductor in a magnetic field is doubled, the induced EMF:
A.
Becomes half
B.
Remains the same
C.
Doubles
D.
Becomes four times
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ANSWER :
C. Doubles