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Electronics
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Semiconductor Principles
Comments
Question
What causes the depletion region?
Options
A. doping
B. diffusion
C. barrier potential
D. ions
Correct Answer
diffusion
Semiconductor Principles problems
Search Results
1. Solid state devices were first manufactured during:
Options
A. World War 2
B. 1904
C. 1907
D. 1960
Show Answer
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Discuss
Correct Answer: 1960
2. When and who discovered that more than one transistor could be constructed on a single piece of semiconductor material:
Options
A. 1949, William Schockley
B. 1955, Walter Bratten
C. 1959, Robert Noyce
D. 1960, John Bardeen
Show Answer
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Discuss
Correct Answer: 1959, Robert Noyce
3. Elements with 1, 2, or 3 valence electrons usually make excellent:
Options
A. conductors
B. semiconductors
C. insulators
D. neutral
Show Answer
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Discuss
Correct Answer: conductors
4. How many valence electrons are in every semiconductor material?
Options
A. 1
B. 2
C. 3
D. 4
Show Answer
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Discuss
Correct Answer: 4
5. What can a semiconductor sense?
Options
A. magnetism
B. temperature
C. pressure
D. all of the above
Show Answer
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Discuss
Correct Answer: all of the above
6. Electron pair bonding occurs when atoms:
Options
A. lack electrons
B. share holes
C. lack holes
D. share electrons
Show Answer
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Discuss
Correct Answer: share electrons
7. What is the most significant development in electronics since World War II?
Options
A. the development of color TV
B. the development of the diode
C. the development of the transistor
D. the development of the TRIAC
Show Answer
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Discuss
Correct Answer: the development of the transistor
8. When testing an n-channel D-MOSFET, resistance G to D = ∞, resistance G to S = ∞, resistance D to SS = ∞ and 500 Ω, depending on the polarity of the ohmmeter, and resistance D to S = 500 Ω. What is wrong?
Options
A. short D to S
B. open G to D
C. open D to SS
D. nothing
Show Answer
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Discuss
Correct Answer: nothing
9. When the JFET is no longer able to control the current, this point is called the:
Options
A. breakdown region
B. depletion region
C. saturation point
D. pinch-off region
Show Answer
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Discuss
Correct Answer: breakdown region
10. JFET terminal "legs" are connections to the drain, the gate, and the:
Options
A. channel
B. source
C. substrate
D. cathode
Show Answer
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Correct Answer: source
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