Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Circuit: current value in generator

  1. Mar 7, 2009 #1
    1. The problem statement, all variables and given/known data
    AC voltage source rms voltage of 158. Circuit has Resistance 106 X(L) is 205 and X(C) is 110
    At the instant the voltage across the generator is at its maximum value, what is the magnitude of the current in teh circuit?

    2. Relevant equations
    V=IR, Vmax=ImaxZ
    I found Z, Irms

    3. The attempt at a solution
    voltage across generator is not in phase with the current so it will be less than the max value but I dont know by what factor it will be less
  2. jcsd
  3. Mar 7, 2009 #2
    The load can be inductive or capacitive to make phase angle = 0. So the minimum |Z| = R.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook