Consider the following statements: (a)An emf can be induced by moving a conductor in a magnetic field. (b)An emf can be induced by changing the magnetic field.

STATEMENT - 1 : A bar magnet is released from rest along the axis of a very long, vertical copper tube. After some time the magnet will move will more with almost constant speed. STATEMENT - 2 : An emf can be induced by moving a conductor in a magnetic field. STATEMENT - 3 : An emf can be induced by changing the magnetic field.

Electric field induced by changing magnetic fields are

Electric field induced by changing magnetic fields are

The induced emf can be produced by changing

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.

Induced electric field due to changing magnetic field

Derive the expression for motional emf induced in a conductor moving in a uniform magnetic field.