Electrical Engineering
2021 · Paper 1
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Complete GATE EE 2021 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 64–65 of 65. Imported answers require review unless explicitly marked reviewed.
Question 54
Open questionEENAT2 marksNeeds review
Consider the buck-boost converter shown. Switch Q is operating at 25 kHz and 0.75 duty-cycle. Assume diode and switch to be ideal. Under steady-state condition, the average current flowing through the inductor is ________ A.
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Open questionEENAT2 marksNeeds review
A single-phase full-bridge inverter fed by a 325 V DC produces a symmetric quasi-square waveform across ‘ab’ as shown. To achieve a modulation index of 0.8, the angle
expressed in degrees should be ________.
(Round off to 2 decimal places.)
(Modulation index is defined as the ratio of the peak of the fundamental component of
to the applied DC value.) 
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