Mangetic effect of current

Answer is option 4. I am getting 2roor2 instead of just root2?


@RithvikSubash said in Mangetic effect of current:
@RithvikSubash
there is a mistake in your solution instead of a it should be a/2 in the denominator
i think @NanduKrishnan is right i am also getting the same

Are you taking a/2 coz the distance between centre and side should be a/2??