The capacitor in an RC circuit(R = 100 , C = 45 uF) isinitially uncharged. Find

Question

The capacitor in an RC circuit(R = 100 , C = 45 uF) isinitially uncharged.
Find the charge on the capacitor in the circuit one timeconstant (r = RC) after the circuit is connected to a9.0-V battery. (answer q(r)=_____ uC) Find the current in the circuit one timeconstant (r = RC) after the circuit is connected to a 9.0-Vbattery. (answer I(r)=______ mA
The capacitor in an RC circuit(R = 100 , C = 45 uF) isinitially uncharged.
Find the charge on the capacitor in the circuit one timeconstant (r = RC) after the circuit is connected to a9.0-V battery. (answer q(r)=_____ uC) Find the current in the circuit one timeconstant (r = RC) after the circuit is connected to a 9.0-Vbattery. (answer I(r)=______ mA Find the current in the circuit one timeconstant (r = RC) after the circuit is connected to a 9.0-Vbattery. (answer I(r)=______ mA

Explanation / Answer

Time constant    t = R C   
Charge on the capacitor    Q =  Qo ( 1- e -t/RC )
                 Qo    =   C V
   Current in theresistance    I = Io e -t/RC          where    Io = V / R
   plug the values and get the answers

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