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5 Cards in this Set
- Front
- Back
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Electric current |
Electric current is the amount of electrons flowing through a conducting material. |
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Electric power |
Electric power is the amount of power consumed by an electrical device. |
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Voltage |
Voltage is a force that affects the rate at which electricity flows through a conductor. It is sometimes called electrical pressure. The higher the voltage, the more likely electricity is to "leak" across an insulator or an air gap. That's one reason higher voltages are more dangerous. Voltage droptells how much electrical pressure is used in a part of the circuit. |
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Frequency |
Frequency is the number of complete alternations— from one direction to the other and then back again—that alternating current makes per second. Each complete alternation is called a cycle. |
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Resistance |
Resistance is the opposition of a material to the flow of electricity through it. All circuits must have a resistance. If they don't, they are called short circuits, and wires can overheat. |
