A car battery with a 12 v emf and an internal resistance of


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

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Physics: A car battery with a 12 v emf and an internal resistance of
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