question_answer

The radius of the circular conducting loop shown in fig. is R. Magnetic field is decreasing at a constant rate a. Resistance per unit length of the loop is \[\rho \]. Then, the current in wire AB is (AB is one of the diameters)

A) \[\frac{R\alpha }{2\rho }\]from A to B

B) \[\frac{R\alpha }{2\rho }\] from B to A

C) \[\frac{R\alpha }{2\rho }\] from A to B

D) 0