A. true power
B. reactive power
C. volt-amperes
D. instantaneous power
A. half wave rectified sine wave
B. triangular wave
C. sine wave
D. square wave
A. current lags behind the voltage by 90°
B. current leads the voltage by 90°
C. current can lead or lag the voltage by 90°
D. current is in phase with the voltage
A. be reduced by half
B. be doubled
C. be four times at high
D. be reduced to one fourth
A. create more electrical noise
B. are likely to melt under excessive eddy current heat
C. consume more power
D. exhibit unwanted inductive and capacitive effects
A. power is consumed in resistance and is equal to I R
B. exchange of power takes place between inductor and supply line
C. exchange of power takes place between capacitor and supply line
D. exchange of power does not take place between resistance and the supply line
E. all above are correct
A. increases with the decrease of capacitance and decrease of resistance
B. increases with the decrease of capacitance and increase of resistance
C. increases with the increase of capacitance and decrease of resistance
D. increase with increase of capacitance and increase of resistance