A circular coil of 20 turns and radius 5.0 cm is placed with its plane oriented at 90° to a uniform magnetic field of 0.10 t. the field is now increased at a steady rate, reaching a value of 0.50 t a

A circular coil of 20 turns and radius 5.0 cm is placed with its plane oriented at 90° to a uniform magnetic field of 0.10 t. the field is now increased at a steady rate, reaching a value of 0.50 t after 4.0 seconds. what emf is induced in the coil?