A 012-μF Capacitor, Initially Uncharged, Is Connected in Series with a a 10-KΩ

question 49

Multiple Choice

A 0.12-μF capacitor, initially uncharged, is connected in series with a 10-kΩ resistor and a 12-V battery of negligible internal resistance. Approximately how long does it take the capacitor to reach 90% of its final charge?

• A) 5.5 ms
• B) 2.8 ms
• C) 1.4 ms
• D) 3.5 ms
• E) 6.9 ms

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