A generator connected to the wheel or hub of a bicycle can be used to power lights or small electronic devices. A typical bicycle generator supplies 6.25 V when the wheels rotate at ω = 19.0 rad/s. HINT

(a) If the generator's magnetic field has magnitude B 0.550 T with N = 105 turns, find the loop area A (in m 2 m
(b) Find the time interval (in s) between the maximum emf of +6.25 V and the minimum emf of-6.25 V