Postby TGTS0907129» Effective value of a current

What is the effective value of a current

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the rate at which heat is developed by a current is proportional to the square of its value (P = I2 R), one can see that the average rate of production of heat by a varying current is proportional to the average value of the square of the current. The square root of this quantity is called the effective, or root-mean-square (rms), current. The effective value of a current is equal to the magnitude of a steady directed current that would produce the same heating effect. The value ordinarily given for an alternating current is its effective is rms value.

By TGTT06081269 on 9/18/2015 3:02:19 AM
TGTS0907129 on 9/18/2015 2:55:04 AM
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