What is induced e.m.f.?

A conducting circular loop is placed in a uniform magnetic field B = 0.025 T with its place perpendicular to the loop. The radius of the loop is made to shrink at a constant rate of 1 mms^-1 . What is the induced e.m.f. when the radius is 2cm?

What is the basic cause of induced e.m.f.?

The current in the coil decreasesfrom10 Amp to 5 Amp in 0.1second. Calculate the co-efficient of self-inductance if induced e.m.f.is 5 V.

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.

The magnetic flux in a coil is phi = 4t^2 + 4t + 4 . What is the magnitude of induced e.m.f. at t = 3sec?

Whenever the magnetic flux linked with a coil changes,then an induced e.m.f. is produced in the circuit. This e. m. f. lasts

How is induced e.m.f related to the rate of change of magnetic flux?

A magnet is brought towards a coil (i) speedily (ii) slowly, then the induced e.m.f./induce charge will be respectively

Define self induction and derive formula for self induced e.m.f. in the coil due to self induction.

A straight conductor of length 0.4 m is moving with a velocity of 7m//s , in a magnetic field of induction 2 Wb//m^2 . The value of the maximum induced e.m.f. in the conductor is