Question

A circular wire abc and a straight conductor adc are carrying current i and are kept in the uniform magnetic field b.

Answer 1

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Class 12

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>>Faraday's and Lenz's Law

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A circular wire ABC and a straight conductor ADC are carrying current i and are kept or the magnetic field B then considering points A and C

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A

Force on ABC is more than that on ADC

B

Force on ABC is less than that on ADC

C

Force on ABC is equal to that on ADC

D

any of (A) or (B) or (C)

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Correct option is

A

Force on ABC is more than that on ADC

Force a conductor placed in a magnetic field is given by

F=BIlsinθ

Here for both conductors θ=90

∘

, so sinθ=1.

The length of the conductor ABC is more than conductor ADC.

So force on conductor ABC will be more than force on conductor ADC.