Q.

In the given circuit the input voltage Vin is shown in figure. The cut-in voltage of p-n junction diode (D1 or D2) is 0.6 V. Which of the following output voltage (Vo) waveform across the diode is correct?

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a

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b

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c

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d

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answer is D.

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Detailed Solution

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In +ve half cycle

D1 F.B.;  D2 R.B. Vout=Vdrop across D1        =00.6VVout  same as Vin  upto 0.6 V.Vdrop,max across D1=0.6 Vsimilarly,  In -ve half cycle D2 F.B.;  D1 R.B. 

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