| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.15 |
| Score | 0% | 63% |
The valence shell of a conductor is how full of electrons?
half full |
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more than half full |
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full |
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less than half full |
Conductors are elements that allow electrons to flow freely. Their valence shell is less than half full of electrons that are able to move easily from one atom to another.
You would measure the amount of current through a circuit with a(n):
ammeter |
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potentiometer |
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voltmeter |
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battery |
Current is the rate of flow of electrons per unit time and is measured in amperes (A). An ammeter is used to measure the electric current in a circuit.
A transistor to an electronic circuit is like a _______________ to a house?
driveway |
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safe |
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no trespassing sign |
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gate |
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 transistor acts as a gate or switch for electronic signals.
A __________ electric current produces a magnetic field proportional to the amount of current flow.
moving |
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stationary |
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low voltage |
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high voltage |
A moving electric current produces a magnetic field proportional to the amount of current flow. This magnetic field can be made stronger by winding the wire into a coil and further enhanced if done around an iron containing (ferrous) core.
An engineer who wants to document an electric circuit would create which of the following?
a layout |
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a schematic |
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a matrix |
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a blueprint |
A schematic is the proper name for a drawing of an electric or electronic circuit.