Question

A metallic rod falls under gravity with its ends pointing east and west. Then

• A. an emf is induced in it as it cuts the magnetic lines of force
• B. no emf is induced at all
• C. two emf of equal nut opposite signs are induced, giving no emf is
• D. its acceleration is equal to the product of g and the radius of the rod.

Answer 1

The correct option is A an emf is induced in it as it cuts the magnetic lines of force

When rod falls due to earth magnetic field an emf is induced

Hence,

option $A$ is correct answer.