A) The electric starter in an automobile equipped with a 12 V battery draws a current of 90.00 A when in operation. Suppose it takes the motor 3.30 s to start the engine. What amount of electric energy has been withdrawn from the battery?
B) The automobile is equipped with a generator that delivers 6.30 A to the battery when the engine is running. How long must the engine run in order for the generator to restore the energy in the battery to its original level?