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Ampere's Circuital Law

A one meter l...

Question

A one meter long wire is lying at right angles to the magnetic field. A force of $1 k g w t$ is acting on it in a magnetic field of $0.98 T e s l a$ . The current flowing in it will be

A

100 A

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B

10 A

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C

1 A

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D

Zero

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Solution

The correct option is B $10 A$
$F = B i l \Rightarrow 1 \times 9.8 = 0.98 \times i \times 1 \Rightarrow i = 10 A$

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