Discussion
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- Question
A commonly used pentavalent material is:
Options- A. arsenic
- B. boron
- C. gallium
- D. neon
- Correct Answer
- arsenic
- 1. Forward bias of a silicon P-N junction will produce a barrier voltage of approximately how many volts?
Options- A. 0.2
- B. 0.3
- C. 0.7
- D. 0.8 Discuss
- 2. Minority carriers are many times activated by:
Options- A. heat
- B. pressure
- C. dopants
- D. forward bias Discuss
- 3. If conductance increases as temperature increases, this is known as a:
Options- A. positive coefficient
- B. negative current flow
- C. negative coefficient
- D. positive resistance Discuss
- 4. What is an energy gap?
Options- A. the space between two orbital shells
- B. the energy equal to the energy acquired by an electron passing a 1 V electric field
- C. the energy band in which electrons can move freely
- D. an energy level at which an electron can exist Discuss
- 5. What is the voltage across R1 if the P-N junction is made of silicon?
Options- A. 12 V
- B. 11.7 V
- C. 11.3 V
- D. 0 V Discuss
- 6. What is a type of doping material?
Options- A. extrinsic semiconductor material
- B. pentavalent material
- C. n-type semiconductor
- D. majority carriers Discuss
- 7. In "n" type material, majority carriers would be:
Options- A. holes
- B. dopants
- C. slower
- D. electrons Discuss
- 8. When is a P-N junction formed?
Options- A. in a depletion region
- B. in a large reverse biased region
- C. the point at which two opposite doped materials come together
- D. whenever there is a forward voltage drop Discuss
- 9. Intrinsic semiconductor material is characterized by a valence shell of how many electrons?
Options- A. 1
- B. 2
- C. 4
- D. 6 Discuss
- 10. A P-N junction mimics a closed switch when it:
Options- A. has a low junction resistance
- B. is reverse biased
- C. cannot overcome its barrier voltage
- D. has a wide depletion region Discuss
Semiconductor Principles problems
Search Results
Correct Answer: 0.7
Correct Answer: heat
Correct Answer: negative coefficient
Explanation:
A negative temperature coefficient (NTC) occurs when the thermal conductivity of a material rises with increasing temperature, typically in a defined temperature range.
Note: The reciprocal of electrical Resistance is called Conductance.
Correct Answer: the space between two orbital shells
Correct Answer: 11.3 V
Correct Answer: pentavalent material
Correct Answer: electrons
Correct Answer: the point at which two opposite doped materials come together
Correct Answer: 4
Correct Answer: has a low junction resistance
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