A. produce harmonic distortion
B. follows Ohm’s law at low temperatures only
C. result in non-uniform heating
D. none of the above
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Related Mcqs:
- Which of the following are non-conductors of electricity?
- A. Non-metal solids except carbon B. Air and most other gases C. Pure water and liquids in general except mercury D. All of the above...
- The conductivity of a conductor can be increased by_______________?
- A. decreasing its temperature B. increasing its temperature C. decreasing its vibration D. increasing its vibration...
- Superconductivity is observed for____________?
- A. infrared frequencies B. d.c. and low frequency C. a.c. and high frequency D. frequencies having no effect E. none of the above...
- The transition temperature of mercury is____________?
- A. 18.0°K B. 9.22°K C. 4.12°K D. 1.14’K...
- Piezoelectric materials serve as a source of ____________ ?
- A. resonant waves B. musical waves C. microwaves D. ultrasonic waves...
- __________ is a hard solder?
- A. Tin-lead B. Tin-silver-lead C. Copper-zinc D. None of the above...
- Carbon resistors are used extensively because they are____________?
- A. easy to make B. compact C. inexpensive D. all of the above reasons...
- Low resistivity materials are used in__________?
- A. transformer, motor and generator windings B. transmission and distribution lines C. house wiring D. all above applications...
- The conduction of electricity, in semiconductors, takes place due to movement of______________?
- A. positive ions only B. negative ions only C. positive and negative ions D. electrons and holes...
- The conductivity of an extrinsic semiconductor with temperature________________?
- A. decreases B. increases C. remains constant...
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