Brutus builds the simple electric generator. An electric current is generated in the wire loop whenever he turns the crank, causing the magnet to spin. How could Brutus increase the amount of electric current his generator produces?
A. Replace the magnet with a weaker magnet
B. Replace the wire loop with an unlooped strand of wire
C. Increase the distance between the magnet and the wire loop
D. Increase the rate at which he turns the crank