Answer:
The
basic difference between direct current and an alternating current is as
follows Alternating Current is an electric current which changes its direction
(f.e., polarity after ascertain fixed interval of time. Graphically it can be
represented as following
Direct Current is an electric current whose magnitude is either constant
or variable, but the direction of flow in a conductor remains the same. Sources
of DC are voltaic cell, a dry cell , battery, DC generator etc and graphically
it is shown as
The frequency of AC in India is f = 50 cycle/s
Time
period of AC is, but
AC changes its direction after every half time period Thus,
in India AC change its direction after every So,
in one second AC changes its direction 100 times.
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