Keywords:
Power
Instantaneous Power
Problem #1
Calculate the instantaneous power at the terminals of the network if v = 10 cos(2π 60t + 130°) V, i = 1 cos(2π 60t + 60°) mA
Need a hint?
Find the average power P and reactive power Q firstly. The instantaneous power can be expressed as p(t)= P+Pcos(2ωt)-Q sin(2ωt), where ω is the frequency of the voltage and the current.