In the shown circuit, V in=100(100 t) V and 100 RC=50. Steady-state average voltage across R is nearest to

GATE 2015 EE (EE2) – Question 18

Analog and Digital Electronics · Simple diode circuits: clipping, clamping, rectifiers · 1 mark · Multiple choice

In the shown circuit, $V_{in}=100\sin(100\pi t)$ V and $100\pi RC=50$. Steady-state average voltage across R is nearest to

Diagram for GATE 2015 EE (EE2) question 18

100 V
31.8 V
200 V
63.6 V

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Show answer and explanation

Correct answer: (C) 200 V

Explanation

The opposite diode orientations charge the two capacitors on alternate half-cycles. With ωRC=50, charge loss per cycle is small, so each capacitor holds approximately the 100 V input peak.

Their voltages add across R in this full-wave voltage-doubler arrangement. The approximate DC output is therefore 2×100=**200 V, C**, allowing a small ripple-related reduction rather than treating the output as a simple rectified average.

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