A current l amperes flows through a loop abcdefgha along the edge of a cube of width l metres as shown in figure. One corner 'a' of the loop lies at origin. Now if a uniform external magnetic field is overset-B=B_(0)hatj is switched on, then the unit vector in the direction of torque due to external magnetic field overset(-B) acting on the current carrying loop (abcdefgha) is

A current l amperes flows through a loop abcdefgha along the edge of a

1.	A current l amperes flows through a loop abcdefgha along the edge of a cube of width l metres as shown in figure. One corner 'a' of the loop lies at origin. Now if a uniform external magnetic field is overset-B=B_(0)hatj is switched on, then the unit vector in the direction of torque due to external magnetic field overset(-B) acting on the current carrying loop (abcdefgha) is
Answer» `HATK` `-HATI` `(2hati-hatj)/(SQRT5)` NONE of these Answer :D

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