We have a series RC circuit. (R is 4000 ohms, C is 25 microfarads). the capacito

Question

We have a series RC circuit. (R is 4000 ohms, C is 25 microfarads). the capacitor is initially uncharged when the switch is closed connecting an 18V battery. Calculate the charge on the capacitor 50 milliseconds after the switch is closed.
Calculate the current in the circuit 50 milliseconds after the switch is closed. We have a series RC circuit. (R is 4000 ohms, C is 25 microfarads). the capacitor is initially uncharged when the switch is closed connecting an 18V battery. Calculate the charge on the capacitor 50 milliseconds after the switch is closed.
Calculate the current in the circuit 50 milliseconds after the switch is closed.
Calculate the current in the circuit 50 milliseconds after the switch is closed.

Explanation / Answer

T = R x C = Rx Q / V => 50x10-3 = 4000 x Q / 18 =>Charge Q = 0.225x10-3 C.

T = R xC = V C / I => 50x10-3 = 18x25x10-6 / I => current I = 9x10-3 A..

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