The maximum efficiency of a half-wave rectifier is _____________?
The maximum efficiency of a half-wave rectifier is _____________? A. 40.6 % B. 81.2 % C. 50 % D. 25 %
The maximum efficiency of a half-wave rectifier is _____________? A. 40.6 % B. 81.2 % C. 50 % D. 25 %
For the same secondary voltage, the output voltage from a centre-tap rectifier is___________ than that of bridge rectifier? A. twice B. thrice C. four timeD. one-half
A half-wave rectifier has an input voltage of 240 V r.m.s. If the step-down transformer has a turns ratio of 8:1, what is the peak load voltage? Ignore diode drop? A. 27.5 V B. 86.5 V C. 30 VD. 42.5…
_____________ filter circuit results in the best voltage regulation? A. choke input B. capacitor input C. resistance input D. none of the above
A 1,000 V power supply would use_____________ as a filter capacitor? A. paper capacitor B. air capacitor C. mica capacitor D. electrolytic capacitor
If the PIV rating of a diode is exceeded,_______________? A. the diode conducts poorlyB. the diode is destroyed C. the diode behaves like a zener diode D. none of the above
The most widely used rectifier is ________________? A. half-wave rectifier B. centre-tap full-wave rectifierC. bridge full-wave rectifier D. none of the above
The PIV rating of each diode in a bridge rectifier is ___________that of the equivalent center-tap rectifier? A. one-half B. the same as C. twice D. four times
A 10 V power supply would use ____________ as filter capacitor? A. paper capacitor B. mica capacitorC. electrolytic capacitor D. air capacitor
____________ rectifier has the lowest forward resistance? A. solid state B. vacuum tube C. gas tube D. none of the above