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10 Cards in this Set
- Front
- Back
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The c Crookes tube and the television picture tube are examples of ____. |
Cathode-ray tubes. |
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The most common type of transistor is the _____ transistor. |
Field-effect |
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The material containing an excess of holes in the crystal lattice is a ____ semi conductor. |
p-type |
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Adding arsenic atoms to a crystal of silicone in order to increase its conductivity is an example of the process called ____. |
Doping |
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A vacuum tube containing two electrodes and designed to allow current to pass in only one direction is a _____. |
Diode |
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The flow of electric current through a vacuum from a heated filament to a positive electrode is the ____emission. |
Thermionic |
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A semiconductor device that can amplify weak signals and act as a switch is a ____. |
Transistor |
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The branch of the study of electricity that deals with the behavior of electrons in a vacuum or in special materials is called _____. |
Electronics |
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Substances that are neither good conductors nor good insulators are called ____. |
Semiconductors |
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Sir J.J. Thomson discovered that "cathode rays" are actually streams of ____. |
Electrons |
