ac theory

Discussion in 'Homework Help' started by ormesher, Nov 12, 2007.

  1. ormesher

    Thread Starter New Member

    Sep 23, 2007
    3
    0
    hello,
    ive answered the following question but would like some confirmation that this i correct.

    A resistor of 250 ohms is connected in series with a 1.5H inductor, across a 100V, 50 hz supply. calculate a) the current flowing, b) the phase angle, c) the p.d. (voltage) across each component and d) the power dissipated.

    a) 0.187 amps
    b) 62.07 degres
    c) inductor = 88.2 Volts, resistor = 46.5 Volts
    d) please help, i cant find the correct formula for the power dissipated.

    Am i correct? your help would be much appreciated
    thanks keith
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    As long as you have RMS values, P = I^2*R or I * E
     
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