Electrical Engineering
2025 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE EE 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 46–48 of 65. Imported answers require review unless explicitly marked reviewed.
Question 46
Open questionEEMCQ2 marksNeeds review
The 3-phase modulating waveforms
and
, used in sinusoidal PWM in a Voltage Source Inverter (VSI) are
where
is the fundamental frequency. The modulating waveforms are compared with a 10 kHz triangular carrier whose magnitude varies between +1 and −1. The VSI has a DC link voltage of 600 V and feeds a star connected motor. The per phase fundamental RMS motor voltage, in volts, is closest toYour answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 47
Open questionEEMCQ2 marksNeeds review
An ideal sinusoidal voltage source
feeds an ideal inductor
through an ideal SCR with firing angle
. If
, then the peak of the inductor current, in ampere, is closest to
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 48
Open questionEEMCQ2 marksNeeds review
In the following circuit, the average voltage
where
is the firing angle. If the power dissipated in the resistor is 64 W, then the closest value of
in degrees is
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer