Reactive Power

Discussion in 'Homework Help' started by Lexi, Jan 4, 2009.

  1. Lexi

    Thread Starter New Member

    Jan 4, 2009
    In a 120 V 10 A ac circuit, if the phase angle between the current and the voltage is 15 degrees 14', what is the reactive power?
  2. DrNick

    Active Member

    Dec 13, 2006
    S = V x I

    S = sqrt(Q^2+P^2)

    Where S is the apparent power, Q is the reactive power, and P is the real power. If you think of this in terms of a triangle, Q = V*I*sin(theta), where theta is the angle between voltage and current.