| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.58 |
| Score | 0% | 72% |
The farad is a unit of measurement for:
power |
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inductance |
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capacitance |
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energy |
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.
Electrons will flow as current from areas of __________ potential (concentration of electrons) to areas of __________ potential.
high, low |
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high, high |
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low, low |
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low, high |
Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.
The hertz is a unit of measurement for:
frequency |
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energy |
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power |
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inductance |
The hertz is a unit of measurement for frequency.
Longer the electrical wires mean _______________ voltage drop.
lesser |
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complete |
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diminishing |
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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.
Voltage and current are __________ proportional.
inversely |
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directly |
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indirectly |
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not |
Voltage (V) is the electrical potential difference between two points. Electrons will flow as current from areas of high potential (concentration of electrons) to areas of low potential. Voltage and current are directly proportional in that the higher the voltage applied to a conductor the higher the current that will result.