Question

A square current carrying loop abcd is placed near an infinitely long another current carrying wire ef.
Now, match the following two columns.
!!!!!!!! please submit full solution !!!!!!​

Answer 1

(A) i-increases

ϕ

s

-Flux in the loop ABCD increases into the plane of paper.

using Lenz's law,

current induced Anti-clockwise,

I

AD

Anti ∥ and I

BC

∥i

no force due to side AB and CD

y>x

loop repel.

(B) i- decreases

ϕ

s

- decreases into the plane of paper induced current clockwise

I

AD

∥i and I

BC

anti \parallel i$$

wire attract the loop.

(C) ϕ

s

-Flux in the loop decreases similar to (B)

(D)ϕ -Flux increases similar to (A).

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