Electronics - Diodes and Applications

Exercise :: Diodes and Applications - General Questions

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: 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: 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

Answer: Option B

Explanation:

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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: 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: Option D

Explanation:

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