The magnetic field in a coil of 100 turns and 40 square cm area is increased from 1 Tesla to 6 Tesla in 2 second. The magnetic field is perpendicular to the coil. The e.m.f. generated in it 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 student peddles a stationary bicycle. The pedals are connected to a coil of 100 turns and area 0.1 m^(-2) . The coil is placed in a uniform magnetic field of 10^(-2) T , perpendicular to the axis of rotation of the coil. What is the maximum voltage generated in the coil if the coil rotates at 60 revolution per minute?

A rectangular coil of 20 turns and area of cross-section 25 cm^(2) has a resistance of 100 ohm . If a magnetic field which is perpendicular to the plane of the coil changes at the rate of 1000 telsa per second, the current in the coil is

A magnetic field of flux density 10 T acts normal to a coil of 50 turns having 20 cm^(2) area. Find emf induced if the coil is removed from the magnetic field in 0.1 sec.

A circular coil of area 0.2m^(2),250 turns,and resistance 5 Omega is placed in magnetic,field.The magnetic field is directed,perpendicular to the plane of coil and it is,increased from "0.01T" to 0.06 during a ,time interval of 0.25s ,the average,induced current in the coil is

A circular coil of 0.2 m diameter has 100 turns and carries a current of 0.1 ampere. The intensity of magnetic field at the centre of the coil is -

An magnetic field of lux density 10 T acts normal to a coil of 50 turns having 100 cm^(2) area. If coil is removed from magnetic field in 0.1 is emf induced is

A square coil of side 25cm having 1000 turns is rotated with a uniform speed in a magnetic field about axis perpendicular to the direction of the field. At an instant t , the e.m.f. induced in the coil is e=200 sin 100pi t . The magnetic induction is