A conducting square loop of side L and resistance R moves in its plane with a 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. The current induced in the loop is

Question

A conducting square loop of side L and resistance R moves in its plane with a 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. The current induced in the loop is (A) (B l v/R) clockwise (B) (B l v/R) anticlockwise (C) (2 B l v/R) anticlockwise (D) zero

Tardigrade Admin · Accepted Answer

As flux through the loop does not change, emf induced in the loop is 0. Hence induced current is also 0.

$\frac{Bl v}{R}$ clockwise

$\frac{Bl v}{R}$ anticlockwise

$\frac{2 Bl v}{R}$ anticlockwise

zero

As flux through the loop does not change, emf induced in the loop is 0. Hence induced current is also 0.

Q. A conducting square loop of side L and resistance R moves in its plane with a 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. The current induced in the loop is

RBlv​ clockwise

RBlv​ anticlockwise

R2Blv​ anticlockwise

zero

As flux through the loop does not change, emf induced in the loop is 0. Hence induced current is also 0.

$\frac{Bl v}{R}$ clockwise

$\frac{Bl v}{R}$ anticlockwise

$\frac{2 Bl v}{R}$ anticlockwise