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    I understand that the Vrms of an alternating current is the value of the direct current that would give the same heating effect as the alternating current in the same load - e.g., a resistor.

    Couple of questions:
    Why would we want to know that?
    What is it used to for and how?
    What does it mean by heating effect? Is it implying to the waste heat? Or heating effect being the waste heat + useful energy to power, for example, an actuator.
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    Nevermind:
    http://answers.yahoo.com/question/in...2094643AAcmgig
 
 
 
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