Engineering
Physics
RC Circuit
Question

 

The figure shows an experimental plot for discharging of a capacitor in an R-C circuit. The time constant t of this circuit lies between: 

50 sec and 100 sec 

0 and 50 sec

150 sec and 200 sec

100 sec and 150 sec

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Solution

V = Ve–t/t

at t = 200 sec, V = 5, V0 = 25

hence we get t = 124.2 sec