| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.21 |
| Score | 0% | 64% |
An engineer who wants to document an electric circuit would create which of the following?
a layout |
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a blueprint |
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a schematic |
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a matrix |
A schematic is the proper name for a drawing of an electric or electronic circuit.
A capacitor is often used for which of the following purposes?
as a primary power source |
|
to maintain power in a circuit when the primary power source is disconnected |
|
to convert alternating current into direct current |
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to allow a small amount of current to control a large amount of current |
Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors are often used to maintain power within a system when it is disconnected from its primary power source or to smooth out or filter voltage within a circuit.
The valence shell of n insulator is how full of electrons?
empty |
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more than half full |
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less than half full |
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half full |
Insulators have valence shells that are more than half full of electrons and, as such, are tightly bound to the nucleus and difficult to move from one atom to another.
| 1200 W | |
| 400 W | |
| 1320 W | |
| 3600 W |
Capacitors connected in series produce __________ capacitance compared to capacitors connected in parallel.
more |
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less |
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no |
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the same |
Capacitors store electricity and are used in circuits as temporary batteries. Capacitors are charged by DC current (AC current passes through a capacitor) and that stored charge can later be dissipated into the circuit as needed. Capacitors connected in series produce less capacitance than capacitors connected in parallel.