A charged capacitor is connected to a resistor and a switch asin the figure belo

Question

A charged capacitor is connected to a resistor and a switch asin the figure below. The circuit has a time constant of0.5 s. After the switch is closed, thecharge on the capacitor is 90% of itsinitial charge. Q=.368 (a) Find the time it takes to reach this charge.
1 s

(b) If R = 260 k, whatis the value of C?
2 µF Any help would be appreciated! A charged capacitor is connected to a resistor and a switch asin the figure below. The circuit has a time constant of0.5 s. After the switch is closed, thecharge on the capacitor is 90% of itsinitial charge. Q=.368 (a) Find the time it takes to reach this charge.
1 s

(b) If R = 260 k, whatis the value of C?
2 µF Any help would be appreciated!

Explanation / Answer

Given :

     Charge on plates of capacitor attime t is gven by

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