Electronics - Diodes and Applications

Exercise :: Diodes and Applications - General Questions

31. 

With a 12 V supply, a silicon diode, and a 370-ohm resistor in series, what voltage will be dropped across the diode?

A. 0.3 V
B. 0.7 V
C. 0.9 V
D. 1.4 V

Answer: Option B

Explanation:

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32. 

If the frequency of the applied ac signal to a half-wave rectifier is 60 Hz, the frequency of the pulsating dc output will be

A. 30 pps
B. 60 pps
C. 90 pps
D. 120 pps

Answer: Option B

Explanation:

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33. 

What is the peak output voltage for this half-wave rectifier?

A. 1 V
B. 7.8 V
C. 10.9 V
D. 15.6 V

Answer: Option B

Explanation:

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34. 

Thermal shutdown occurs in an IC regulator if:

A. power dissipation is too high
B. internal temperature is too high
C. current through the device is too high
D. load resistance increases

Answer: Option B

Explanation:

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35. 

The conduction band is closest to the valence band in

A. semiconductors
B. conductors
C. insulators
D. The distance is the same for all of the above.

Answer: Option A

Explanation:

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