Q. A conducting square loop of side ‘L’ and resistance ‘R’ moves in its plane with the uniform velocity ‘v’ perpendicular to one of its sides. A magnetic induction ‘B’ constant in time and space pointing perpendicular and into the plane of the loop exists everywhere as shown in the figure. The current induced in the loop is
(i) BLv/R Clockwise
(ii) BLv/R Anticlockwise
(iii) 2BLv/R Anticlockwise
(iv)Zero
Answer: (iv)Zero
the rate of change of magnetic flux is zero, hence there will be no net induced emf and hence no current flowing in the loop.