voltamp vs watts

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Discussion in 'General Electronics Chat' started by Erin G., Mar 27, 2005.

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  1. Mar 27, 2005 #1
    Erin G.

    Thread Starter Senior Member

    Mar 3, 2005
    167
    1
    In a resistive circuit, voltamps and watts are equal, because the power factor is 1 (100%). In an inductive circuit, since the current lags the voltage, voltamps is generally higher than watts. In other words, apparent power is higher than actual, usable power.

    Is there an easy formula to convert voltamp ratings to amps in an inductive, non-transformer, circuit. Capacitve circuit?
     
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  2. Mar 27, 2005 #2
    Erin G.

    Thread Starter Senior Member

    Mar 3, 2005
    167
    1
    Oops. double posted <_<
     
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  3. Mar 27, 2005 #3
    David Bridgen

    Senior Member

    Feb 10, 2005
    278
    0
    Power factor = True power/Apparent power

    = W/VA
     
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