Diodes and application interview questions

1.
What is a varistor?

A. a voltage-dependent resistor
B. a voltage-dependent diode
C. a current-dependent resistor
D. a current-dependent diode
Answer & Explanation
Answer: Option A

Explanation:

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2.
Which type of transformer is required to create a 180 degree input to a rectifier?

A. center-tapped secondary
B. step-down secondary
C. stepped-up secondary
D. split winding primary
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3.
What circuit activity may shift a characteristic curve so that diode operating points are different?

A. higher power (heat)
B. higher resistance
C. lower voltage
D. lower current
Answer & Explanation
Answer: Option A

Explanation:

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4.
What is wrong with this diode?

A. open
B. short
C. nothing
D. not enough data
Answer & Explanation
Answer: Option C

Explanation:

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5.
The dc current through each diode in a bridge rectifier equals:

A. the load current
B. half the dc load current
C. twice the dc load current
D. one-fourth the dc load current
Answer & Explanation
Answer: Option A

Explanation:

No answer description available for this question.

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