its from physics
2006-10-20 06:34:19 · 7 answers · asked by SHUBHRA RAI 1 in Education & Reference ➔ Home Schooling
An alternating current (AC) is an electrical current whose magnitude and direction vary cyclically, as opposed to direct current, whose direction remains constant. The usual waveform of an AC power circuit is a sine wave, as this results in the most efficient transmission of energy. However in certain applications different waveforms are used, such as triangular or square waves.
Used generically, AC refers to the form in which electricity is delivered to businesses and residences. However, audio and radio signals carried on electrical wire are also examples of alternating current. In these applications, an important goal is often the recovery of information encoded (or modulated) onto the AC signal.
2006-10-20 07:07:02 · answer #1 · answered by jmj 2 · 1⤊ 0⤋
Define Alternating Current
2016-12-08 11:05:12 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Alternating Current Definition
2016-11-02 00:57:49 · answer #3 · answered by ? 4 · 0⤊ 0⤋
AC is short for alternating current. This means that the direction of current flowing in a circuit is constantly being reversed back and forth. This is done with any type of AC current/voltage source.
The electrical current in your house is alternating current. This comes from power plants that are operated by the electric company. Those big wires you see stretching across the countryside are carrying AC current from the power plants to the loads, which are in our homes and businesses. The direction of current is switching back and forth 60 times each second.
Just check out this site for more of such questions
http://www.download-studyguides.blogspot.com/
and must check out the followng links
CFA Exam StudySelf Study, Online & In Class For 2006
British Education Exams
2006-2007 entrance exam info
Aieee 2007 exam guide
CSC Study Materials
Pass your exam the first try, ...and quizzer.
2006-10-22 05:30:38 · answer #4 · answered by jugnu 3 · 0⤊ 0⤋
This Site Might Help You.
RE:
define alternating current?
its from physics
2015-08-19 10:11:27 · answer #5 · answered by Olivia 1 · 0⤊ 0⤋
Alternating current is electrical current that changes polarity and direction as it travels
2006-10-20 06:41:32 · answer #6 · answered by Anonymous · 1⤊ 0⤋
IT IS that current which changes its polarity and direction at every instant of time.
2006-10-23 21:25:57 · answer #7 · answered by venkates 1 · 0⤊ 0⤋
Exchanging current (AC), is an electric current in which the stream of electric charge intermittently switches heading, though in direct current (DC, likewise dc), the stream of electric charge is just in one course.
https://www.electrikals.com/
2015-08-25 20:04:25 · answer #8 · answered by shaun 4 · 0⤊ 0⤋
are you a class 12 student
2006-10-20 06:36:50 · answer #9 · answered by prinx 2 · 0⤊ 1⤋