Question

A circular coil expands radially in a region of magnetic field and no electromotive force is produced in the coil This is because ______.

Options

• the magnetic field is constant
• the magnetic field is in the same plane as the circular coil and it may or may not vary.
• the magnetic field has a perpendicular (to the plane of the coil) component whose magnitude is decreasing suitably.

• both the magnetic field is in the same plane as the circular coil and it may or may not vary and the magnetic field has a perpendicular (to the plane of the coil) component whose magnitude is decreasing suitably.

Answer 1

both the magnetic field is in the same plane as the circular coil and it may or may not vary and the magnetic field has a perpendicular (to the plane of the coil) component whose magnitude is decreasing suitably.