An uncharged 1.0-μF capacitor is connected in series with a 23-kΩ resistor, an ideal 7.0-V battery,...
An uncharged 1.0-μF capacitor is connected in series with a
23-kΩ resistor, an ideal 7.0-V battery, and an open switch. What is
the voltage across the capacitor 11ms after closing the
switch?
A) 2.6V
B) 2.7V
C) 1.6V
D) 0.62V
Homework Answers
τ = RC = 23K * 1μ = 0.023 s
V = Vo(1 - e^(-t/τ) )
= 7(1 - e^(-0.011/0.023) )
= 2.661 V
(A)
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