Q7.27Multiple choice
An electrical device draws 2kW power from AC mains (voltage 223V (rms) = 50,000 V). The current differs (lags) in phase by φ tan φ = –3 as compared to voltage. Find
- (i)R,
- (ii)X – X , and C L 4
- (iii)IM . Another device has twice the values for R, X C and X L. How are the answers affected?