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Home ‣ Electronics ‣ Semiconductor Principles Comments
  • Question

  • 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

  • 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.

    Semiconductor Principles problems

    Search Results

    • 1. 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
    • 2. 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
    • 3. Which material may also be considered a semiconductor element?

    • Options
    • A. carbon
    • B. ceramic
    • C. mica
    • D. argon
      • Discuss
    • 4. Silicon atoms combine into an orderly pattern called a:

    • Options
    • A. covalent bond
    • B. crystal
    • C. semiconductor
    • D. valence orbit
      • Discuss
    • 5. Ionization within a P-N junction causes a layer on each side of the barrier called the:

    • Options
    • A. junction
    • B. depletion region
    • C. barrier voltage
    • D. forward voltage
      • Discuss
    • 6. Minority carriers are many times activated by:

    • Options
    • A. heat
    • B. pressure
    • C. dopants
    • D. forward bias
      • Discuss
    • 7. 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
    • 8. A commonly used pentavalent material is:

    • Options
    • A. arsenic
    • B. boron
    • C. gallium
    • D. neon
      • Discuss
    • 9. What is a type of doping material?

    • Options
    • A. extrinsic semiconductor material
    • B. pentavalent material
    • C. n-type semiconductor
    • D. majority carriers
      • Discuss
    • 10. In "n" type material, majority carriers would be:

    • Options
    • A. holes
    • B. dopants
    • C. slower
    • D. electrons
      • Discuss

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