The given pair of capacitors in Figure P18.65 are fully charged by a 12.0-V battery. The battery is disconnected and the circuit closed. After 1.00 ms, how much charge remains on (a) the 3.00-μF capacitor? (b) The 2.00-μF capacitor? (c) What is the current in the resistor?FIGURE P18.65

Physics for Scientists and Engineers, Technology Update (No access codes included)
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Chapter28: Direct-current Circuits
Section: Chapter Questions
Problem 28.63AP: The- pair of capacitors in Figure P28.63 are fully charged by a 12.0-V battery. The battery is...
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The given pair of capacitors in Figure P18.65 are fully charged by a 12.0-V battery. The battery is disconnected and the circuit closed. After 1.00 ms, how much charge remains on (a) the 3.00-μF capacitor? (b) The 2.00-μF capacitor? (c) What is the current in the resistor?

FIGURE P18.65

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Expert Solution
Answer for part (a)

Since the capacitors are connected in parallel, the equivalent capacitance here is

Physics homework question answer, step 1, image 1

The time constant can be obtained as

Physics homework question answer, step 1, image 2

Answer for part (a) continues

The charge stored in the 3μF capacitor is

Physics homework question answer, step 2, image 1

The charge that remains in the 3μF capacitor can be obtained as

Physics homework question answer, step 2, image 2

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