Watt - is a watt is
the term used to describe a unit of power. It is named after James Watt
(1736-1819), the inventor of the first practical steam engine. The definition
of the watt is based on the definition of power the rate at which work is
done. Although power was used in mechanical engineering long before
electricity was heard of, the use of the watt as an electrical term is now
universally accepted.
Electric
power may be a thousand kilowatts for an electric locomotive, a hundred watts
for a light bulb, or only the very minute fraction of one watt which a radio
receiver picks out of the air.
No comments:
Post a Comment