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Power Electronics
Under normal operating condition voltage clamping device offers impedance of
high value.
zero value.
low value.
moderate value.
high value.
zero value.
low value.
moderate value.
Answer
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Related Question
Power Electronics
Gate circuit or triggering circuit of a thyristor is
lower power circuit.
magnetic circuit.
high power circuit.
may be low power or high power circuit.
lower power circuit.
magnetic circuit.
high power circuit.
may be low power or high power circuit.
Answer
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Power Electronics
Which of following is not a power transistor?
IGBTs.
SITS.
TRIAC.
COOLMOS.
IGBTs.
SITS.
TRIAC.
COOLMOS.
Answer
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Power Electronics
A 200 A thyristor is to be operated in parallel with a 300 A thyristor. The ON state voltage drops are 1.5 V and 1.2 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 500 A and each of them is fully loaded ?
0.3 ohm
0.03 ohm
3.0 ohm
0.3 ohm
0.3 ohm
0.03 ohm
3.0 ohm
0.3 ohm
Answer
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Power Electronics
A diac has ___________ semiconductor layers
Two
Three
None of these
Four
Two
Three
None of these
Four
Answer
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Power Electronics
To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage.
None of these
Equal to
More than
Less than
None of these
Equal to
More than
Less than
Answer
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