In some motors, the spinning rotor is made of nonmagnetic aluminum and has no electrical connections. This rotor becomes magnetic as the motor operates on alternating current because
A)	the changing magnetic environment around the rotor induces electrical currents in the rotor.
B)	the positive and negative charges in the rotor separate as the rotor spins.
C)	alternating current is inherently magnetic while direct current is not.
D)	aluminum is easily magnetized when exposed to a nearby magnetic pole.
Answer:A
In some motors, the spinning rotor is made of nonmagnetic aluminum and has no electrical connections. This rotor becomes magnetic as the motor operates on alternating current because
A)	the changing magnetic environment around the rotor induces electrical currents in the rotor. B)	the positive and negative charges in the rotor separate as the rotor spins. C)	alternating current is inherently magnetic while direct current is not. D)	aluminum is easily magnetized when exposed to a nearby magnetic pole.