purses SU Community Question Completion Status aDexmoou00m #7c. At t 0 (i.e., im

Question

purses SU Community Question Completion Status aDexmoou00m #7c. At t 0 (i.e., immediately after the circuit is connected) the current in R3 (Give your answer in the f 10 points Save Answer Question 19 #7d. What is the current in R3 at t oo (Give your answer in the form of 'abc x 10AD) A 10 points save Answer Question 20 87e. What is the potential difference across R1 at t co (Give your answer in the form of "a.bc x 10AD) V Answer Question 21 10 points Save Answer a7r. What is the potential difference across R2 a very long time after the circuit is connected? Give your answer in the rorm auc v MacBook Pro

Explanation / Answer

part 18 )

at t = 0

no current in capacitor branch

at t = 0

I = e/Req

Req = R1 + R3 = 13.6*10^6 ( thet both are in series )

I = 1.10 x 10^-3A = 1.10 x 10^0 mA

part 19 )

when t = infinite

Capacitor wok like a wire

R2 and R3 in parallel

R23 = 3.4 Mohm = 3.4 x 10^6 ohm

now R23 in series with R1

Req = R1 + R23 = 10.2 x 10^6 ohm

I = 15 *10^3 / 10.2*10^6

I = 1.47 x 10^-3 A

now in series currnt remain same

current in R23 = 1.47 x 10^-3

in R2 and R3 = 7.35 x 10^-4 A

part 20 )

V1 = IR1

V1 = 10,000 V

part 21 )

V2 = I2R2

V2 = 5000 V

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