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POWER ELECTRONICS

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

None of these
Gate current
Breakover voltage
Gate voltage

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

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

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

Only positive
None of these
Both positive and negative
Only negative

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

Negative resistance
Saturation
None of these
Cut-off

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

Saturation
None of these
Negative resistance
Cut-off

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