Diodes and application interview question

41.

Providing a constant output regardless of ac input or load resistance changes is the function of a:
A.     transformer    B.     filter
C.     regulator    D.     rectifier
Answer & Explanation

Answer: Option C

Explanation:

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42.

When a diode is destroyed it has infinite impedance. When damaged by heat it will probably:
A.     short
B.     conduct more
C.     conduct less
D.     open
Answer & Explanation

Answer: Option A

Explanation:

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43.

The area at the junction of p-type and n-type materials that has lost its majority carriers is called the
A.     barrier potential
B.     depletion region
C.     n region
D.     p region
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44.

DC power should be connected to forward bias a diode as follows:
A.     – anode, + cathode
B.     – cathode, – anode
C.     + anode, – cathode
D.     + cathode, + anode
Answer & Explanation

Answer: Option C

Explanation:

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45.

At any given time in an intrinsic piece of semiconductor material at room temperature
A.     electrons drift randomly
B.     recombination occurs
C.     holes are created
D.     All of the above
Answer & Explanation

Answer: Option D

Explanation:

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