A current carrying square loop is placed near a straight infinitely long current carrying wire as shown in figure. The torque acting on the loop is

Question

A current carrying square loop is placed near a straight infinitely long current carrying wire as shown in figure. The torque acting on the loop is, μ 0 2 π i 1 i 2 l a b, μ 0 2 π i 1 i 2 l a ( a + b ), μ 0 2 π i 1 i 2 i ( b - a ) a b, 0

MARKS App · Accepted Answer

Recall the formula of torque due to current carrying loop is, ζ = N i A B sin θ , here N , i , A & B are a number of turns, current in the coil, area of the coil and magnetic field here θ is the angle between area vector and direction of the magnetic field which is 0 ° (by using right hand thum rule) so torque will be zero.

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