Question

A wire in the form of a semi-circle rotates about the diameter of the circle with angular frequency o in a uniform magnetic field perpendicular to the diameter of the circle. Then mean electrical power generated is

• A. proportional to w
• B. proportional to w2
• C. proportional to 1/ w
• D. proportional to w

Answer 1

Answer: (B)

proportional to w2

Answer 2

The correct option is (B): proportional to w2