The capacitor shown in the circuit in the figure is initially uncharged when the

Question

The capacitor shown in the circuit in the figure is initially uncharged when the switch S is suddently closed, and the battery is ideal. After one time constant has gone by, find (a) the current through the resistor and (b) the charge on the capacitor. Assume that the numbers shown are all accuragte to two significant figures.

The capacitor shown in the circuit in the figure is ini is suddenly closed, and the battery is ideal. After or the current through the resistor and (b) the charge c numbers shown are all accurate to two significant

Explanation / Answer

Growth of charge is q = Q[1-e^(-t/T)]...

after one time constant = q= 0.63*Q = 0.63*(C*V)= 0.63(200*10^-5) = 1.26 mC...

B) i =0.63(V/R) = 0.63*(200/100)= 1.26 A

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