Home Physics Electromagnetic Induction All Topic Question for Revision Test A wire of length 50 cm moves with a velocity…
Physics Electromagnetic Induction All Topic Question for Revision Test MCQ (Single Correct)

A wire of length 50 cm moves with a velocity of , perpendicular to a magnetic field. If the emf induced in the wire is 2 V, then the magnitude of the field (in tesla) is

A
2
B
5
C
0.8
D
2.5

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The correct answer is:
C

When a wire of length l moves with velocity v, perpendicular to a magnetic field B, then the emf is induced. The magnitude of induced emf is given by .

Given,

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