RC Circuit Discharge Time
An RC circuit contains a 2.0 μF capacitor and a 3.0 MΩ resistor. After a charged capacitor begins to discharge, approximately how many time constants must elapse for the capacitor’s voltage to reach 1% of its initial value?
A
ln(100)τ
B
2.3τ
C
10τ
D
4.6τ
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