what is the frequency of Ac ? Mention its value in india and give advantage of Ac over Dc and why it is used for transmission of electricity over a longer distance? answer me fast......
Answers
AC frequency is the number of cycles per second in an alternating current (ac) sine wave. Said another way, frequency is the rate at which current changes direction per second. ... Hertz (Hz): One hertz is equal to one cycle per second. Cycle: One complete wave of alternating current or voltage.
Hey mate
The direction of current gets reversed evry half rotation these type of current is called alternating current
The frequency of ac in India is 50hertz
(i) AC can be transmitted with much lower energy losses as compared to dc.
(ii) AC voltage can be adjusted (stepped-up or stepped down) as per requirement
(iii) AC current in a circuit can be controlled using (almost) wattless devices like choke coil.
(iv) a.c. is easier to generate
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