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A square loop ABCD carrying a current i ...


A square loop `ABCD` carrying a current `i` is placed near and coplanar with a long straight conductor `XY` carrying a current `I`.

A

There is no net force on the loop

B

The loop will be attracted by the conductor only if the current in the loop flows clockwise.

C

The loop will be attracted by the conductor only if the current in the loop flows anticlockwise.

D

The loop will always be attracted by the conductor.

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A square loop of ABCD carrying a current i, is placed near and coplanar with a long straight conductor XY carrying a current I, the net force on the loop will be

    A
    `(2mu_0 Ii)/(3pi)`
    B
    `(mu_0 Ii)/(2pi)`
    C
    `(2mu_0 IiL)/(3pi)`
    D
    `(mu_0IiL)/(2pi)`

  • A square loop ABCD , carrying a current I_(2) is placed near and coplanar with a long straight conductor XY , carrying a current I_(1) as shown in Figure. The net force on the loop will be

    A
    `(mu_(0) I_(1) I_(2))/(2pi)`
    B
    `(2mu_(0) I_(1) I_(2))/(3pi)`
    C
    `(mu_(0) I_(1) I_(2)L)/(2pi)`
    D
    `(2mu_(0) I_(1) I_(2)L)/(3pi)`

  • A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I_1 at a distance d from the conductor as shown in figure. The loop will experience

    A
    a net attractive force towards the conductor
    B
    a net repulsive force away from the conductor
    C
    a net torque acting upward perpendicular to the horizontal plane
    D
    a net torque acting downward normal to the horizontal plane

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