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2
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is equal the rate of conversation of electrical energy
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3
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measured in joules
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5
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is a device that receives one or more e l ectrical input signals, and produces an output signal that depends on those input signals
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7
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cells and batteries supply electric currents which always flows in the same direction
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8
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can be used to display and measure a direct current or alternating current waveform
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10
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can be used to control the amount of current flowing around a circuit
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11
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measured in watts
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12
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can replace a fuse
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1
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constantly changing direction
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4
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is the UK mains supply AC or DC
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6
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Is the current from a battery of cells AC or DC
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9
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contains a thin section of wire, designed to melt and break if the current gets above a certain value.
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