A patient is slowly pushed in a time of `10s` within the coils of the magnet of `MRI` machine where magnetic field is `B=2.0T`. If the patient's trunk is `0.8m` in circumference, the induced emf around the patient's trunk is

A 50 turn coil with an average diameter of 0.04 m is placed perpendicular to a magnetic field of 5000 T. If the magnetic field is changed to 2000 T in 5 s, find the magnitude of the induced emf.

A train is moving towards north with a speed of 25 m/s. if the vertical component of the earth's magnetic field is 0.2 xx 10^(-4) T, the emf induced in the axle 1.5 m long is

A circular coil of area 0.1 m^(2) having 200 turns is placed in a magnetic field of 40 T. The plane of the coil makes 30^(@) with the field. If the field is removed for 0.1 s then the induced emf in the coil is

A 50 turns circular coil has a radius of 3 cm, it is kept in a magnetic field acting normal to the area of the coil. The magnetic field B increased from 0.10 tesla to 0.35 tesla in 2 milliseconds. The average induced e.m.f in the coil is

A 50 turns circular coil has a radius of 3cm , it is kept in a magnetic field acting normal to the area of the coil. The magnetic field B increased from 0.10 tesla to 0.35 tesla in 2 milliseconds . The average induced e.m.f. in the coil is

A 50 turns circular coil has a radius of 3 cm, it is kept in a magnetic field acting normal to the area of the coil. The magnetic field B increased from 0.10 tesla to 0.35 tesla in 2 milliseconds. The average induced e.m.f in the coil is

The radius of a circular coil having 100 turns is 2 cm. its plane is normal to the magnetic field. The magnetic field changes from 4T to 8T in 3.14 sec. The induced emf in coil will be

A coil having an area A_(0) is placed in a magnetic field which changes from B_(0) to 4B_(0) in a time interval t . The e.m.f. induced in the coil will be