AP Physics 2 : Understanding RC Circuit Diagrams

Study concepts, example questions & explanations for AP Physics 2

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Example Questions

Example Question #1 : Understanding Rc Circuit Diagrams

Physics2set1q11

If \displaystyle R_{1}=10 \Omega , \displaystyle C_{1}=2F, and the voltage source is \displaystyle 10 V, what is the time constant of this RC circuit?

Possible Answers:

\displaystyle 10

\displaystyle 5

\displaystyle 20

\displaystyle 2

\displaystyle 200

Correct answer:

\displaystyle 20

Explanation:

The time constant of this RC circuit is only dependent on the value of the resistance and the capacitor, not the voltage source.

\displaystyle \tau=R\cdot C

\displaystyle \tau=20

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