An old car battery that has an emf of e m f1 = 11.5 V...

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Physics

An old car battery that has an emf of e m f1 = 11.5 V and aninternal resistance of 55.0 mΩ is connected to an R = 2.00 Ωresistor. In an attempt to recharge the battery, you connect asecond battery that has an emf of e m f2 = 12.6 V and an internalresistance of 10.0 mΩ in parallel with the first battery and theresistor with a pair of jumper cables.

(a) Draw a diagram of the circuit.

(b) Find the current in each branch of the circuit. (Enter youranswers from smallest to largest.)

(c) Find the power supplied by the second battery. Assume thatthe emfs and internal resistances of both batteries remainconstant.


Discuss where that power is delivered. Assume that the emfs andinternal resistances of both batteries remain constant.

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