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Question
In our daily life we use 2 types of electric current
1)name the type of current in 2 case
2)identify any one source for each type of current
3)what is the frequency of current in case of our country
4)one the basic of these graphics list 2 difference between the two currents
5)out of 2 which 1 is used in transmitting electric power or long distances, why?
1)name the type of current in 2 case
2)identify any one source for each type of current
3)what is the frequency of current in case of our country
4)one the basic of these graphics list 2 difference between the two currents
5)out of 2 which 1 is used in transmitting electric power or long distances, why?
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Solution
(1) Alternating current (AC) and direct current (DC)
(2) AC-main supply
DC - cell or battery
(3) AC = 50 Hz
DC = infinte
(4) AC has double polarity
DC has single polarity
(5) AC is used because power loss is less.
(2) AC-main supply
DC - cell or battery
(3) AC = 50 Hz
DC = infinte
(4) AC has double polarity
DC has single polarity
(5) AC is used because power loss is less.
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