A conducting rod is moving in uniform field of 4 - 102 Tesla- speed of the rod is 6 m-s- Find the emf induced in the rod-

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Standard XII

Physics

Motional EMF in an Open Conductor

A conducting ...

Question

A conducting rod is moving in uniform field of $4 \times 10^{2}$ Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

72 volt

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96 volt

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312 volt

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288 volt

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Solution

The correct option is D 288 volt
emf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity.
Threfore, L = 12 cm.
emf $= 4 \times 10^{2} \times 6 \times L$
$= 4 \times 10^{2} \times 6 \times 12 \times 10^{- 2}$
= 288 V

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A conducting rod is moving in uniform field of 4×102 Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

The correct option is D 288 voltemf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity. Threfore, L = 12 cm. emf =4×102×6×L =4×102×6×12×10−2 = 288 V

A conducting rod is moving in uniform field of $4 \times 10^{2}$ Tesla; speed of the rod is 6 m/s. Find the emf induced in the rod.

The correct option is D 288 volt
emf = B V L, where 'L' is the dimension of the rod which is perpendicular to both the field and the velocity.
Threfore, L = 12 cm.
emf $= 4 \times 10^{2} \times 6 \times L$
$= 4 \times 10^{2} \times 6 \times 12 \times 10^{- 2}$
= 288 V