A conducting loop is positioned within a uniform magnetic field such that its plane is perpendicular to the field. An emf is induced in the loop if

Step-by-step solution

The magnetic flux linked with the loop is given by = B A = BA , where B is the uniform magnetic field, A is the area of the loop, and is the angle between the magnetic field and the area vector. According to Faraday's law of electromagnetic induction, an emf is induced in the loop if the magnetic flux changes with time. When the loop is deformed, its area A changes, leading to a change in magnetic flux. Hence, an emf is induced. When the loop is rotated about its axis, the angle remains constant, and the area A rem