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unit of electric power equal to one joule per second |
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a magnet made by winding a wire around an iron core and passing electricity through the wire |
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the current magnetizes the core |
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form of radiant energy with a frequency in the electromagnetic spectrum |
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used to measure the intensity of an electric current |
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a flow of negatively charged electrons through a conductor |
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currrent (measured in amps)= voltage %resistance |
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device that changes chemical energy into electric energy |
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closed loop path of conduction through which an electric current flows |
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basic unit of electric current in SI units |
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measures the strength of electric current |
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the SI unit of electric potential or potential difference |
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wet or dry cell which produces an electric current |
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the lines of forces around a magnet or an electric current |
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the change in the electrical potential energy per unit charge |
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charges move from a position of high electrical potential energy to a position of low electrical potential energy |
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what is also known as voltage? |
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navigation tool with a magnetized needle that points out directions such as north, south, east, and west |
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the amount of electric charge produced by a current of one ampere flowing for one second |
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states that the resistance in an electric circuit is equal to the voltage divided by the current R=V/I |
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