A 100 microfarad capacitor charges through a 1 kilohm resistor. What is the time constant of the circuit?
Answer and explanation
Correct answer: D. 0.1 s
- Step 1: The time constant is tau = R C.
- Step 2: tau = 1000 ohm x 100e-6 F = 0.1 s.
Answer
0.1 s.
Why not the others: The other values come from mistakes converting kilohms and microfarads to ohms and farads.
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