A car battery with a 12 V emf and an internal resistance of 0.040 is being charged with a current of 45 A.
(a) Find the potential difference V across its terminals?
V
(b) Calculate the rate Pr of energy dissipation inside the battery?
W
(c) Find at what rate is electrical energy being converted to chemical energy?
W
(d) When the battery is used to supply 45 A to the starter motor, find V?
V
(e) Calculate what is Pr in this case?
W