Question:
A conducting square loop of side L moves with a uniform speed V in a region of uniform magnetic field acting perpendicular to the plane of the loop and directed into it as shown in figure. The emf induced in the loop is:
A conducting square loop of side L moves with a uniform speed V in a region of uniform magnetic field acting perpendicular to the plane of the loop and directed into it as shown in figure. The emf induced in the loop is:
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No flux change = No induced emf.
Updated On: Jun 6, 2026
- BLV
- BLV/2
- zero
- 2BLV
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Motional Electromotive Force ($EMF$).
Step 2: Meaning
$EMF$ is induced only when there is a change in magnetic flux through the loop.
Step 3: Analysis
Since the loop moves within a region of uniform magnetic field, the magnetic flux ($\Phi = B \times A$) passing through the loop remains constant. By Faraday's Law, $EMF = -d\Phi/dt = 0$.
Step 4: Conclusion
No change in flux means zero induced $EMF$.
Final Answer: (C)
Motional Electromotive Force ($EMF$).
Step 2: Meaning
$EMF$ is induced only when there is a change in magnetic flux through the loop.
Step 3: Analysis
Since the loop moves within a region of uniform magnetic field, the magnetic flux ($\Phi = B \times A$) passing through the loop remains constant. By Faraday's Law, $EMF = -d\Phi/dt = 0$.
Step 4: Conclusion
No change in flux means zero induced $EMF$.
Final Answer: (C)
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