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In the circuit shown , the batteries hav...

In the circuit shown , the batteries have emf `E_1 = E_2= 1V , E_3 = 2.5 V,` and the resistance `R_1 = 10Omega, R_2 = 20 Omega`, Capacitance `C = 10 muF`. The charge on the left plate of the charge on the left plate of the capacitor C at steady state is

A

`+2muC`

B

`-4muC`

C

`-5muC`

D

`+12muC`

Text Solution

Verified by Experts

The correct Answer is:
C
c. `i = (2.5-1)/30 = 0.05A`
`-20i + 2.5 = V_("capacitor") + 1 `
`V_("capacitor") = 0.5V`
`q^((-)) = CV = 10 xx 0.5 = 5` .
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