A square loop ABCD, carrying a current i, is placed near an…

Physics Moving Charge and Magnetism Mix MCQ (Single Correct)

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

There is no net force on the loop

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

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

The loop will always be attracted by the conductor

Text Solution

Verified by Experts

The correct answer is:

i = power delivered to R = P = i 2 R = ,

= 0

⇒ R = r

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