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POWER ELECTRONICS

Power Electronics
The normal way to turn on a diac is by ___________.

Breakover voltage
None of these
Gate voltage
Gate current

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Power Electronics
Which of the following is not a characteristic of UJT?

Negative resistance
Intrinsic stand off ratio
Bilateral conduction
Peak-point voltage

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Power Electronics
A triac can pass a portion of ___________ half-cycle through the load.

Only negative
Both positive and negative
None of these
Only positive

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Power Electronics
Between the peak point and the valley point of UJT emitter characteristics we have ___________ region

Negative resistance
None of these
Cut-off
Saturation

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Power Electronics
After peak point, the UJT operates in the ___________ region.

None of these
Negative resistance
Saturation
Cut-off

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