POWER ELECTRONICS PART 11
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Attempt Free POWER ELECTRONICS PART 11 Here. Read The Important Electrical MCQ From Below.
[1] Which of the following statements are correct?
(a) 1 and 2
(b)1, 2, 3
(c) All
(d) 4 only
Answer
[2] Which of the following statements are correct?
Answer
POWER ELECTRONICS PART 11
[3] Which of the following is not a fully controlled semiconductor device?
Answer
[4] Which of the following is not associated with p-n junction
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[5] In a p-n junction diode under reverse bias, the magnitude of electric field is maximum at
Answer
[6] An n-channel JFET has IDSS=2mA, and Vp=-4V. Its transconductance gm=(in mA/V) for an applied gate to source voltage VGS=-2V is
Answer
POWER ELECTRONICS PART 11
[7] The MOSFET switch in its on-state may be considered equivalent to
(a) Resistor
(b) Inductor
(c) Capacitor
(d) Battery
Answer
[8] The effective channel length of a MOSFET in a saturation decreases with increase in
(a) Gate voltage
(b) Drain voltage
(c) Source voltage
(d) Body voltage
Answer
[9] The early effect in a bipolar junction transistor is caused by
(a) Fast turn – on
(b) Fast turn – off
(c) Large collector – base reverse bias
(d) Large emmiter – base forward bias
Answer
[10] MOSFET can be used as a
(a) Current controlled capacitor
(b) Voltage controlled capacitor
(c) Current controlled inductor
(d) Voltage controlled inductors
Answer
POWER ELECTRONICS PART 11
[11] The number of PN junctions in a SCR is
(a) 1
(b) 2
(c) 3
(d) 4
Answer
[12] In the SCR, when the anode terminal is positive with respect to cathode terminal, the number of blocked PN junctions is
(a) 1
(b) 2
(c) 3
(d) 4
Answer
[13] In the SCR, when the cathode terminal is positive with respect to anode terminal, the number of blocked PN junctions is
(a) 1
(b) 2
(c) 3
(d) 4
Answer
[14] In the SCR, the anode current is made up of
(a) Electrons only
(b) Electrons or holes
(c) Electrons and holes
(d) Holes only
Answer
POWER ELECTRONICS PART 11
[15] When the SCR is triggered, it will change from forward blocking state to conduction state if its anode to cathode voltage is equal to
(a) Peak repetitive off-state forward voltage
(b) Peak working off-state forward voltage
(c) Peak working off-state reverse voltage
(d) Peak non-repetitive off-state forward voltage
Answer
