A wire is cut across a flux of `0.2x10(-2)` weber in 0.12 seconds. What is the e.m.f. induced in the wire ?

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

The magnetic flux passing perpendicular to the plane of the coil and directed into the paper is varying according to the relation phi=6t^2 +7t+1 Where phi is in milliweber and t is in seconds. what is the magnitude of e.m.f. induced in the loop when t=2s?

A coil of metallic wire is stationary in non-uniform magnetic field. What is the e.m.f induced in the coil?

A copper rod of length 0.18 m is moving with a uniform velocity 10 ms^-1 parallel to a long straight wire carrying a current of 5.0 A. The rod itself is perpendicular to the wire with its ends at distances 0.01 m and 0.2 m from it. Calculate the e.m.f. induced in the rod.