A square loop of side `22 cm` is changed to a circle in time `0.4 sec` with its plane normal to a magnetic field `0.2 T`. The emf induced is

A square loop of side 44 cm is changed to a circle in time 0.5 sec with its plane normal to a magnetic field 0.6 T. The emf induced is

A square loop of side 20 cm and resistance 0.30 Omega is placed in a magnetic field of 0.4 T. The magnetic field is at an angle of 45^(@) to the plane of loop. If the magnetic field is reduced to zero in 0.5 s, then find the induced emf and induced current in the loop in this time interval.

A square loop of side 22cm is converted into circular loop in 0.4s . A uniform magnetic field of 0.2T directed normal to the loop, then the induced in the loop is

A square coil of side 0.5 m has movable sides. It is placed such that its plane is perpendicular to uniform magnetic field of induction 0.2 T. If all the sides are allowed to move with a speed of 0.1 ms^(-1) for 4 sec outwards, average induced emf is

A square coil of side 0.5 m has movable sides. It is placed such that its plane is perpendicular to uniform magnetic field of induction 0.2 T. If all the sides are allowed to move with a speed of 0.1 ms^(-1) for 4 sec outwards, average induced emf is

A square coil of side 0.5 m has movable sides. It si placed such that its plance is perpendiuclar to uniform magnetic field of induction 0.2T . If all the sides are allowed to move with a speed of 0.1 m//s for 4 sec outwards, average induced emf is

A wire of length l in the from of a circular loop lies in a plane normal to a magnetic firld B_(0) . If this wire is converted into a square loop in time t_(0) , find the average induced emf.

A square loop of side 5 cm enters a magnetic field with 1cms^(-1) . The front edge enters the magnetic emf?

A square loop of side 5 cm enters a magnetic field with 1cms^(-1) . The front edge enters the magnetic emf?