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CBSE Class 12-science Answered

Is the magnitude of AC voltage/current same as the instantanious value of the AC voltage/current?
Asked by ARATHI M | 25 Nov, 2013, 04:25: PM
answered-by-expert Expert Answer
No.
Magnitude of AC voltage/current is not  same as the instantanious value of the AC voltage/current.
 
Magnitude of the AC voltage/current is the rms value of voltage/current.
 
Example:
consider a 230 V AC mains supply used in many countries around the world. It is so called because its root mean square value is 230 V.
 
While the instantaneous value of voltage/current is the value of voltage/current at a perticular instance of time that varies with time. Its becomes max at paek voltage and also becomes zero.
Answered by Komal Parmar | 27 Nov, 2013, 01:13: PM

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