MCQ
A rectangular loop carrying a current $i$ is situated near a long straight wire such that the wire is parallel to the one of the sides of the loop and is in the plane of the loop. If a steady current $I$ is established in wire as shown in figure, the loop will
  • A
    Rotate about an axis parallel to the wire
  • B
    Move away from the wire or towards right
  • Move towards the wire
  • D
    Remain stationary

Answer

Correct option: C.
Move towards the wire
c
(c)$\,{r_1} < {r_2}$
So $F_1 > F_2$
$ \Rightarrow {F_{net}} = ({F_1} - {F_2})$
towards the wire.

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