A circular coil of 20 turns and radius 5 cm is placed with its plane oriented 90 degrees to a uniform magnetic field of 0.1T. The field is now increased at a steady rate, reaching a value of 0.5T after 4.0 seconds?
A) what emf is induced in the coil?
B) IF THE RESISTANCE OF THE COIL IS R=0.2. CALCULATE THE INDUCED CURRENT WE CAN GET?