1
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
The figure shows the voltage across a power semiconductor device and the current through the device during a switching transition. Is the transition a turn ON transition or a turn OFF transition? What is the energy lost during the transition? GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 10 English
A
Turn ON, $${{V{\rm I}} \over {2\left( {{t_1} + {t_2}} \right)}}$$
B
Turn OFF, $$V{\rm I}\left( {{t_1} + {t_2}} \right)$$
C
Turn ON, $$V{\rm I}\left( {{t_1} + {t_2}} \right)$$
D
Turn OFF, $${{V{\rm I}} \over {2\left( {{t_1} + {t_2}} \right)}}$$
2
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
An electronic switch $$S$$ is required to block voltages of either polarity during its OFF state as shown in figure (a). This switch is required to conduct in only one direction during its ON state as shown in the figure (b). GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 9 English 1

Which of the following are valid realizations of the switch $$s$$?

GATE EE 2005 Power Electronics - Power Semiconductor Devices Question 9 English 2
A
Only $$1$$
B
$$1$$ and $$2$$
C
$$1$$ and $$3$$
D
$$3$$ and $$4$$
3
GATE EE 2004
MCQ (Single Correct Answer)
+2
-0.6
A $$MOSFET$$ rated for $$15 A,$$ carries a periodic current as shown in figure. The ON state resistance of the MOSFET is $$0.15$$ $$\Omega .$$ The average ON state loss in the $$MOSFET$$ is GATE EE 2004 Power Electronics - Power Semiconductor Devices Question 11 English
A
$$33.8$$ $$W$$
B
$$15.0$$ $$W$$
C
$$7.5$$ $$W$$
D
$$3.8$$ $$W$$
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