Power Electronics [GATE (Graduate Aptitude Test in Engineering) Electrical Engineering (EE)]: Questions 1 - 4 of 60

Choose Programs:

🎯 305 Numeric, 541 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)

Rs. 400.00 -OR-

3 Year Validity (Multiple Devices)

CoverageDetailsSample Explanation

Help me Choose & Register (Watch Video) Already Subscribed?

Question 1

Appeared in Year: 2019

Question MCQ▾

The enhancement type MOSFET in the circuit below operates according to the square law. μA/ , the threshold voltage is 500 mV. Ignore channel length modulation. The output voltage is

The Enhancement Type MOSFET

Choices

Choice (4)Response

a.

600 mV

b.

500 mV

c.

2 V

d.

100 mV

Edit

Question 2

Appeared in Year: 2020

Question Numeric Answer▾

In the dc-dc converter circuit shown, switch Q is switched at a frequency of 10 kHz with a duty ratio of 0. All components of the circuit are ideal, and the initial current in the inductor is zero. Energy stored in the inductor in mJ (rounded off to 2 decimal places) at the end of 10 complete switching cycles is ________

In the Dc-Dc Converter Circuit
Edit

Question 3

Appeared in Year: 2020

Question MCQ▾

Thyristor is triggered at an angle (in degree) and at angle of , in each cycle of sinusoidal input voltage. Assume both thyristors to be ideal. To control the load power over the range of 0 to 2 kW, the minimum range of variation in α is:

Assume Both Thyristors to be Ideal

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 4

Appeared in Year: 2019

Question Numeric Answer▾

A single-phase fully-controlled thyristor converter is used to obtain an average voltage of 180 V with 10 A constant current to feed a DC load. It is fed from single-phase AC supply of 230 V, 50 Hz. Neglect the source impedance. The power factor (round off to two decimal places) of AC mains is ________.

Edit