Rectifiers » Exercise - 113. 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 times (d) one-half
Rectifiers » Exercise - 116. The most widely used rectifier is ........... (a) half-wave rectifier (b) centre-tap full-wave rectifier (c) bridge full-wave rectifier (d) none of the above
Regulated Power Supplies » Exercise - 3 101. In a simple series regulator circuit, which of the following components is the controlling element? (a) Load resistor (b) Zener diode (c) Transistor Q1 (d) None of the above 102. What regulated output voltage is provided for the following circuit elements: R1 = 15 kΩ, R2 = 35 kΩ, and VZ = 11.2 V? (a) 16.50 V (b) 17 V (c) 17.35 V (d) 18.25 V 103. Nota 104. Which component(s) set(s) the voltage across the load in a basic transistor shunt regulator? (a) Zener diode (b) Transistor base-emitter voltage (c) Both the Zener diode and the transistor base-emitter voltage (d) None of the above 105. In a full-wave rectifier, if no load were connected across the capacitor, the output voltage would ideally be a(n) ________. (a) ac voltage (b) constant dc voltage (c) pulsating dc voltage (d) ramp voltage 106. The output of a loaded power supply is ________ that of the unloaded. (a) the same as (b) larger than (c) smaller than (d) None of the above 107. The frequency of the output voltage of a full-wave rectifier is ________ the frequency of its input voltage. (a) the same as (b)…
Rectifiers » Exercise - 125. The most widely used rectifier is ........... (a) half-wave rectifier (b) centre-tap full-wave rectifier (c) bridge full-wave rectifier (d) none of the above
Rectifiers » Exercise - 15. If the output voltage of a bridge rectifier is 100V, the PIV of diode will be : (a) 100√2 V (b) 200/π V (c) 100π V (d) 100π/2 V