BITSAT2020PhysicsElectromagnetic InductionActual
A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its side. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere. The current induced in the loop is
Options
- AB v R clockwise
- BB v R anticlockwise
- C2 ~B v R anticlockwise
- Dzero
Correct answer
D. zero
Step-by-step solution
Since the magnetic field is uniform the flux f through the square loop at any time t is constant, because array l f = B A = B L ²= constant =- d dt = zero array