Published by:
CGP EDU Academic Team
Published on: September 12, 2026
To induce an e.m.f. in a coil, the linking magnetic flux
Text Solution
Verified by ExpertsThe correct answer is:
B
Step 1: Understand Faraday's Law of Electromagnetic Induction.
According to this law, an electromotive force (e.m.f.) is induced in a coil when there is a change in the magnetic flux linking the coil.
Step 2: Identify the nature of the change in magnetic flux.
The change in magnetic flux can occur due to an increase or decrease in the magnetic field strength, the area of the coil, or the angle between the magnetic field and the normal to the coil.
Since an e.m.f. is induced when there is a change in the linking magnetic flux, this flux can either increase or decrease to generate the e.m.f.
Conclusion: Therefore, the correct option is that the linking magnetic flux can either increase or decrease.
Therefore, the answer is B.
According to this law, an electromotive force (e.m.f.) is induced in a coil when there is a change in the magnetic flux linking the coil.
Step 2: Identify the nature of the change in magnetic flux.
The change in magnetic flux can occur due to an increase or decrease in the magnetic field strength, the area of the coil, or the angle between the magnetic field and the normal to the coil.
Since an e.m.f. is induced when there is a change in the linking magnetic flux, this flux can either increase or decrease to generate the e.m.f.
Conclusion: Therefore, the correct option is that the linking magnetic flux can either increase or decrease.
Therefore, the answer is B.
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