| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.25 |
| Score | 0% | 65% |
This circuit component symbol represents a(n):
transformer |
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inductor |
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diode |
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transistor |
The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.
A solid state device has which of the following characteristics?
made entirely from insulative material |
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made from a mix of conductive and insulative material |
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made entirely from semiconductor material |
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made entirely from conductive material |
The transistor is the foundation of modern electronic devices. It is made entirely from semiconductor material (making it a solid state device) and can serve many different functions in a circuit including acting as a switch, amplifier, or current regulator. A transistor works by allowing a small amount of current applied at the base to control general current flow from collector to emitter through the transistor.
Longer the electrical wires mean _______________ voltage drop.
diminishing |
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lesser |
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complete |
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greater |
Electrical wires have a certain amount of resistance per foot. A longer wire means more resistance and a greater voltage drop.
In metals, increasing the temperature typically _____________ conductivity.
increases |
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does nothing to |
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decreases |
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eliminates |
All conductors have resistance and the amount of resistance varies with the element. Metals exhibit increased resistance (and, therefore, lower conductivity) as their temperature increases.
The hertz is a unit of measurement for:
energy |
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frequency |
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inductance |
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power |
The hertz is a unit of measurement for frequency.