Explanation: Instant switch is closed, the current is maximum Vs/R than starts to reduce, whereas voltage starts to increase from 0 to Vs (Capacitor Charging). 4. The time constant of a series RC circuit (τ) is given by
A. R/C
B. C/R
C. RC
D. 1/RC
Answer:A
Explanation: Instant switch is closed, the current is maximum Vs/R than starts to reduce, whereas voltage starts to increase from 0 to Vs (Capacitor Charging). 4. The time constant of a series RC circuit (τ) is given by
A. R/C B. C/R C. RC D. 1/RC
Explanation: For a series RC circuit, τ = RC. 5. A circuit is so formed such that source-R-L-diode-switch are all in series. Consider the initial current in L to be zero. The diode is so connected that it is forward biased when switch is closed.