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For the given input voltage wavelength V...

For the given input voltage wavelength `V_("in")(t)` , the output voltage waveform `(V_0)(t)` , across the capacitor is correctly depicted by :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A

At ` t= 5mus`
`V_0(t)=5(1-e^(-(5xx10^(-6))/(10^3xx10xx10^(-9))))`
`= 5(1-e^(-0.5))=2V`
`V_0(t)=2e^(-t/(RC))=2e^(-0.5)=1.21 V`
Now, `V_("in")` = 0 means discharging
`V_0(t)=2e^(-t/(RC))=2e^(-0.5)=1.21 V`
Now for next `5mus`
`V_0(t)=5 -3.79e^(-t/(RC))`
After `5mus` again
`V_0(t) = 2.79 Volt ~~ 3V`
Most appropriate ans. is (a).
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