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An automobile battery has an emf of 12.2 V and an internal resistance of 0.088 omegacap.gif. The headlights have a total resistance of 3.30 omegacap.gif (assumed constant).
(a) What is the potential difference across the headlight bulbs when they are the only load on the battery?
=________ V
(b) What is the potential difference across the headlight bulbs when the starter motor is operated, and taking an additional 31.0 A from the battery?
=_______ V
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