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Q#1
Diode and Its Applications
GATE EC 2017
MCQ
+1 mark
-0.33 marks
In the figure, D1 is a real silicon pn junction diode with a drop of 0.7 V under forward bias condition and D2 is a Zener diode with breakdown voltage of – 6.8 V. The input 
is a periodic square wave of period T, whose one period is shown in the figure.
Assuming 
, where 
is the time constant of the circuit, the maximum and minimum values of the output waveform are respectively.
7.5 V and – 20.5 V
6.1 V and – 21.9 V
7.5 V and – 21.2 V
6.1 V and – 22.6 V
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