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Q.

What is magnitude of magnetic force per unit length of conducting wire carrying current of 8 A and making an angle of 30° with the direction of uniform magnetic field of 0.15 T?

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a

0.6 N m–1

b

1.2 N m–1

c

0.62 N m–1

d

0.3 Nm-1

answer is A.

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Detailed Solution

F=BIℓsin⁡θ,Fℓ=0.15×8×12=0.6Nm−1

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