E EEPE Member Joined Mar 13, 2008 Messages 6 Reaction score 0 Sep 7, 2008 #1 can someone explain this to me. Why can't I do this: P = (50)^2 / (2)(5) + (28.28)^2 / (2)(5) that is : P = (Vrms)^2 / R Thanks,
can someone explain this to me. Why can't I do this: P = (50)^2 / (2)(5) + (28.28)^2 / (2)(5) that is : P = (Vrms)^2 / R Thanks,
F FairhopeEE Well-known member Joined Jun 22, 2008 Messages 77 Reaction score 0 Location Fairhope, AL Sep 7, 2008 #2 Must add the voltages as phasors; 50@45 deg plus 28.28, the magnitude of that vector sum is 72.8 volts. Now use your formula. Last edited by a moderator: Sep 7, 2008
Must add the voltages as phasors; 50@45 deg plus 28.28, the magnitude of that vector sum is 72.8 volts. Now use your formula.
E EEPE Member Joined Mar 13, 2008 Messages 6 Reaction score 0 Sep 7, 2008 #3 FairhopeEE said: Must add the voltages as phasors; 50@45 deg plus 28.28, the magnitude of that vector sum is 72.8 volts. Now use your formula. Click to expand... Thanks. I am not sure why I was confused about that.
FairhopeEE said: Must add the voltages as phasors; 50@45 deg plus 28.28, the magnitude of that vector sum is 72.8 volts. Now use your formula. Click to expand... Thanks. I am not sure why I was confused about that.
