The circuit below is of an RC circuit . The switch has been open for a long time, and the switch closes at time t- 0 seconds. What is the time constant for the voltage across e cаpаcitor?

The circuit below is of an RC circuit The switch has been open for a long time and the switch closes at time t 0 seconds What is the time constant for the volta class=

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Answer:

  100 μs

Explanation:

The Thévenin equivalent source impedance is the parallel impedance of the two resistors, so 50 ohms. The R·C product is then ...

  (50 ohms)(2 microfarads) = 100 microseconds