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The Epic Interactive Encyclopedia 1998
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Epic Interactive Encyclopedia, The - 1998 Edition (1998)(Epic Marketing).iso
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Electric_power
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INFOTEXT
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1992-09-02
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612b
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16 lines
The rate at which an electrical machine uses
electrical energy or converts it into other
forms of energy - for example, light, heat,
mechanical energy. Usually measured in watts
(equivalent to joules per second), it is
equal to the product of the voltage and the
current flowing. An electric lamp that passes
a current of 0.4 amps at 250 volts uses 100
watts of electrical power and converts it
into light - in ordinary terms it is a
100-watt lamp. An electric motor that
requires 6 amps at the same voltage consumes
1,500 watts (1.5 kilowatts), equivalent to
delivering about 2 horsepower of mechanical
energy.