- (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
Electrical Engineering Mcqs
- (A) C only
- (B) L only
- (C) R only
- (D) all above
- (A) Vc and VR
- (B) VL and VR
- (C) Vc and VL
- (D) none of the above
- (A) 0.5 of peak value
- (B) 0.707 of peak value
- (C) same as peak value
- (D) zero
- (A) series resistance needs a low-resistance source for sharp rise in current
- (B) series resonance needs a high-resistance source for sharp increase in current
- (C) parallel resonance needs a low-resistance source for a sharp in¬crease in impedance
- (D) parallel resonance needs a low-resistance source for a sharp rise in line current
- (A) the speed with which the alternator runs
- (B) the number of cycles generated in one minute
- (C) the number of waves passing through a point in one second
- (D) the number of electrons passing through a point in one second
- (A) inductive reactance
- (B) capacitive reactance
- (C) resistance
- (D) capacitance
- (A) 60 sin 25 t
- (B) 60 sin 50 t
- (C) 84.84 sin 3141
- (D) 42.42 sin 314 t
- (A) less than unity
- (B) unity
- (C) greater than unity
- (D) zero
- (A) be reduced by half
- (B) be doubled
- (C) be four times as high
- (D) be reduced to one fourth
