A coil of 100 turns each of area 0.1 m^2 is rotated at constant speed of 300 r.p.m. in a uniform magnetic field of induction 0.02 `Wb//m^2` about an axis in the plane of the coil and perpendicular to the direction of the coil.Calculate the maximum value of induced e.m.f.

A coil of 50 turns each of area 0.12m^2 is rotated at constant speed of 600 r.p.m. in uniform magnetic field of induction 0.02 tesla about an axis in the plane of coil and perpendicular to direction of field.Calculate maximum e.m.f. induced in the coil.

A coil of 100 turns each of area 0.12m^2 is rotated with constant speed 62.8rad/s in uniform magnetic field of induction 0.02 tesla about an axis in the plane of coil and perpendicular to the direction of field. Calculate maximum value of induced e.m..f.in the coil.

A coil of 10^3 turns each of area 100 cm^2 rotateswith speed of 100 r.p.m. about an axis in its plane and perpendicular to uniform field of induction 36 xx 10^-2 Wb//m^2 . Find the peak and e.m.f. value of the induced e.m.f. in the coil.

When a rectangular coil is rotated about an axis in the plane of coil and perpendicular to magnetic field with steady speed then

A coil having 50 turns and an area of 800cm^2 is held with its plane perpendicular to uniform magnetic field of induction 5 xx 10^-5 Wb/m^2 .If it is pulled out of the field in 2 second ,then the e.m.f.induced in the coil will be

A coil of 2000 turns and of mean radius 5 cm, makes 300 revolutions per minute around one of its diameters in a uniform magnetic field of induction 2.5 xx 10^-5 Wb/m^2 at right angles to its axis of rotation .Calculate the maximum e.m.f. induced in the coil and also its r.m.s. value.

A rectangular coil has 100 turns has length 5 cm and breadth 2 cm. It is suspended in radial magnetic field of induction 0.1 Wb//m^(2) . If a current of 100 muA is passed through the coil, then the torque acting on the coil is

A coil of effective area 2m^2 is placed at right angles to a magnetic field of induction 0.08 Wb//m^2 . Find the e.m.f. induced in it if the field reduces to ten percent of its original value in 0.6s

A metal rod of length 1 m is rotated about one of its endsin a plane at right anglesto a uniform magnetic field of induction 2.5 xx 10^-3Wb//m^2 . If it makes 1800 r.p.m. calculate the induced emf between it.

The self inductance of a coil is 5 H, a current of 1 A change to 2 A within 5 second through the coil. The value of induced e.m.f. will be