An RC circuit is shown in the figure with R 1 =4 k?, R 2 =12 k? and C 1 =8 ?F, C

Question

An RC circuit is shown in the figure with R1=4 k?, R2=12 k? and C1=8 ?F, C2=9 ?F. What is the time constant ? of the circuit (expressed in ms)?

For an equivalent RC circuit being charged using a battery with voltage V = 14 V, what would the magnitude of charge accumulated on the capacitor after time t=5? ? Answer in units of ?C

An RC circuit is shown in the figure with R1=4 k?, R2=12 k? and C1=8 ?F, C2=9 ?F. What is the time constant ? of the circuit (expressed in ms)? For an equivalent RC circuit being charged using a battery with voltage V = 14 V, what would the magnitude of charge accumulated on the capacitor after time t=5? ? Answer in units of ?C

Explanation / Answer

Req = 4*12/16 = 3 k?

Ceq = 8+9 = 17 ?F

time constant = Rc = 3*17*10^-3 =51 ms

b)

q = 14*17?F*(1-e^-5) = 236.39 ?C

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