GATE EC 2019 Set 1 — Question 34
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Question
In the circuit shown, is a square wave of period with maximum and minimum values of V and V, respectively. Assume that the diode is ideal and . The average value of is _______ volts (rounded off to 1 decimal place).

Correct answer
-3.1
Solution
The input is V for and V for .
1.Case 1: V (Positive half cycle)
The diode is forward biased and acts as a short circuit. This shorts out . The output voltage is equal to the source voltage:2.Case 2: V (Negative half cycle)
The diode is reverse biased and acts as an open circuit. and are now in series. Using the voltage divider rule:3.Average Value:
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