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Power Electronics
Example of a voltage clamping device
aluminium block.
snubber circuit.
fast acting fuse.
metal oxide varistor.
aluminium block.
snubber circuit.
fast acting fuse.
metal oxide varistor.
Answer
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Power Electronics
Which of the following is used in SCR to protect from high dV / dt?
Fuse.
Equalizing circuit.
Circuit breaker.
Snubber circuit.
Fuse.
Equalizing circuit.
Circuit breaker.
Snubber circuit.
Answer
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Power Electronics
A diac is turned on by ___________.
Gate voltage
None of these
Gate current
A breakover voltage
Gate voltage
None of these
Gate current
A breakover voltage
Answer
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Power Electronics
By which one of the following we can measure the reliability of a string?
String efficient.
Factor of safety.
Derating factor.
Reliability factor.
String efficient.
Factor of safety.
Derating factor.
Reliability factor.
Answer
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Power Electronics
A UJT is sometimes called ___________ diode.
Double-base
Low resistance
Single-base
High resistance
Double-base
Low resistance
Single-base
High resistance
Answer
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Power Electronics
Which of the following is used in heat sink?
Aluminium.
Silver.
Carbon.
Iron.
Aluminium.
Silver.
Carbon.
Iron.
Answer
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