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- Question
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
- Correct Answer
- nothing
- 1. 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 Discuss
- 2. Electron pair bonding occurs when atoms:
Options- A. lack electrons
- B. share holes
- C. lack holes
- D. share electrons Discuss
- 3. What causes the depletion region?
Options- A. doping
- B. diffusion
- C. barrier potential
- D. ions Discuss
- 4. Solid state devices were first manufactured during:
Options- A. World War 2
- B. 1904
- C. 1907
- D. 1960 Discuss
- 5. 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 Discuss
- 6. 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 Discuss
- 7. JFET terminal "legs" are connections to the drain, the gate, and the:
Options- A. channel
- B. source
- C. substrate
- D. cathode Discuss
- 8. With a JFET, a ratio of output current change against an input voltage change is called:
Options- A. transconductance
- B. siemens
- C. resistivity
- D. gain Discuss
- 9. How will a D-MOSFET input impedance change with signal frequency?
Options- A. As frequency increases input impedance increases.
- B. As frequency increases input impedance is constant.
- C. As frequency decreases input impedance increases.
- D. As frequency decreases input impedance is constant. Discuss
- 10. The common-source JFET amplifier has:
Options- A. a very high input impedance and a relatively low voltage gain
- B. a high input impedance and a very high voltage gain
- C. a high input impedance and a voltage gain less than 1
- D. no voltage gain Discuss
Field Effect Transistors (FET) problems
Search Results
Correct Answer: the development of the transistor
Correct Answer: share electrons
Correct Answer: diffusion
Correct Answer: 1960
Correct Answer: 1959, Robert Noyce
Correct Answer: breakdown region
Correct Answer: source
Correct Answer: transconductance
Correct Answer: As frequency decreases input impedance increases.
Correct Answer: a very high input impedance and a relatively low voltage gain
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