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Question: A 4.80-µF capacitor that isinitially uncharged is connected in series with a 7.40-kΩ resistor and an emf source withε = 100 V and negligible internal resistance.
(a) Just after the circuit is completed, what is the voltage drop across the capacitor?
(b) Just after the circuit is completed, what is the voltage dropacross the resistor?
(c) Just after the circuit is completed, what is the charge on thecapacitor?
(d) Just after the circuit is completed, what is the currentthrough the resistor?
(e) A long time after the circuit is completed (after many timeconstants) what are the values of the quantities in parts (a)â€" (d)?
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A capacitor is being charged from a battery and through a resistor of 10 kohms. It is observed that the voltage on the capacitor rises to 80% of its maximal value in 4 seconds. Calculate the capacitor's capacitance.
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