Q. Assertion While applying Ampere's circuital law to given surfaces with same perimeter, the left hand side has not changed but the right hand side is zero.
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Reason No current passes through the surface.

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Solution:

On applying Ampere's circuital law to such surfaces with the same perimeter, we find that the left hand side of equation has not changed but the right hand side is zero and not .
Since, no current passes through the surface.