CapacitanceHard
Question
The time constant of the circuit shown is :
Options
A.RC/2
B.3RC/5
C.RC/3
D.RC/4
Solution
⇒ E =
= 
⇒ E = 2ε , req = 
= 0 Equivalent battery
imax =
for Qmax ⇒
i =
i2 = 
, i1 = 
i3 = i4 = 
potential on C = potential on 2R resistance = i3 × 2R = ε
charge on capacitor Qmax = CV = Cε τ =
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