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Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1

GATE EE 1994

MCQ (Single Correct Answer)
A switched mode power supply operating at $$20$$ $$kHz$$ to $$100$$ $$kHz$$ range uses as the main switching element
A
Thysistor
B
$$MOSFET$$
C
Triac
D
$$UJT$$
2

GATE EE 1994

Fill in the Blanks
A triac can be triggered by a gate pulse of __________ polarity

Answer

either positive or negative
3

GATE EE 1993

MCQ (Single Correct Answer)
The thermal resistance between the body of a power semiconductor device and the ambient is expressed as
A
Voltage across the device divided by current through the device
B
Average power dissipated in the device divided by the square of the $$RMS$$ current in the device
C
Average power dissipted in the device divided by the temperature difference from body to ambient
D
Temperature difference from body to ambient divided by average power dissipated in the divice
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Questions Asked from Power Semiconductor Devices

On those following papers in Marks 1
Number in Brackets after Paper Indicates No. of Questions
GATE EE 2018 (1)
GATE EE 2017 Set 1 (1)
GATE EE 2016 Set 1 (1)
GATE EE 2014 Set 1 (1)
GATE EE 2012 (1)
GATE EE 2011 (1)
GATE EE 2010 (1)
GATE EE 2009 (1)
GATE EE 2005 (1)
GATE EE 2004 (2)
GATE EE 2003 (2)
GATE EE 1998 (3)
GATE EE 1997 (1)
GATE EE 1996 (3)
GATE EE 1995 (1)
GATE EE 1994 (2)
GATE EE 1993 (1)

Chapters Map

Choppers and Commutation Techniques
Single and Three Phase Rectifier
Power Semiconductor Devices
Ac Voltage Controllers
Inverters

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