An e.m.f. Can be induced between the two ends of a straight copper wire when it is moved through a uniform magnetic field.

State whether the following statement are true of false giving reason in brif : (a) The dimension of (h//e) is the same as that of magnetic flux phi . (b) The dimensions of electric and magnetic flux are same. (c ) A coil or a metal wire is kept stationary in a non-uniform magnetic field. An e.m.f. is induced in the coil. (d) An e.m.f. can be induced between the two ends of a straingth copper wire when it is moved through a magnetic field.

The induced emf between the two ends of a straight conductor moving perpendicular to its axis in a uniform magnetic field is

Read the following two statements. (A) Emf can be induced by changing magnetic field. (B) Emf must be induced when a conductor is moved inside magnetic field.

Derive the expression for emf induced in a straight conductor moving perpendicular to a uniform magnetic field.

Asseration: The induced emf in a conducting loop of wire will be non zero when it rotates in a uniform magnetic field. Reason: The emf is induced due to change in magnetic flux.