Question
Question: Find the time constant of given circuit–  4ms
A
(b) 18ms
A
(c) 8ms
A
(d) 98μs
Explanation
Solution
(d)
Ceq=2+42×4=68μ FReq = 2+12×1=32Ω
C = Req Ceq = 68×32=98 msec