What is one time constant of a 4.7 $\mu \mathrm { F }$ capacitor in series with a 22 $k \Omega$ resistor?
A) 1.03 ms
B) 103 ms
C) 0.103 ms
D) 10.3 ms

Question

What is one time constant of a  4.7  $\mu \mathrm { F }$ capacitor in series with a 22 $k \Omega$ resistor?
A)  1.03 ms
B)  103  ms
C)  0.103  ms
D)  10.3  ms

Quizplus · Accepted Answer

The time constant is given by the formula:

$ 	au = RC $

where R is the resistance and C is the capacitance.

Substituting the given values, we get:

$ 	au = (22	imes 10^3 \Omega)(4.7 \mu F) = 103.4 ms \approx \boxed{B}$

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