3. A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current waveform will be :
(a)sinusoidal (b)constant DC (c)square (d)triangular
Answer
Answer : (c)
Explanation
Explanation : No answer description available for this question. Let us discuss.
Special Diodes » Exercise - 1 1. A Zener diode : (a) Is a battery under forward biased condition (b) Acts like battery when it breakdowns (c) Is a switch (d) Is a device having barrier potential more than 5V 2. At 25ºC, a Zener diode rates at 2 watts, its power rating at 50ºC will be : (a) Zero watts (b) Less than 1 watt (c) Greater than 2 watts (d) Less than 2 watts 3. Silicon is appreciably employed as a base material compared to germanium while manufacturing Zener diode since : (a) silicon is abundantly available (b) it is costlier (c) it has low current capability (d) it has high temperature capability 4. The capacitance of a varactor diode increases, when the reverse voltage across it is : (a) Decreased (b) Increased (c) Kept constant (d) None of the above 5. The main advantage of a point contact diode is that : (a) The ratio of forward current to reverse current is very high (b) Low input impedance (c) Its cut-in voltage is equal to zero (d) Its reverse resistance is infinite 6. Which one of the following is a Square law device ? (a) Zener diode (b) Crystal diode (c) Tunnel diode (d) Varactor diode 7. Match the given lists. List I…
Rectifiers » Exercise - 111. There is a need of transformer for ........ (a) half-wave rectifier (b) centre-tap full-wave rectifier (c) bridge full-wave rectifier (d) none of the above
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
Special Diodes » Exercise - 1 1. A Zener diode : (a) Is a battery under forward biased condition (b) Acts like battery when it breakdowns (c) Is a switch (d) Is a device having barrier potential more than 5V 2. At 25ºC, a Zener diode rates at 2 watts, its power rating at 50ºC will be : (a) Zero watts (b) Less than 1 watt (c) Greater than 2 watts (d) Less than 2 watts 3. Silicon is appreciably employed as a base material compared to germanium while manufacturing Zener diode since : (a) silicon is abundantly available (b) it is costlier (c) it has low current capability (d) it has high temperature capability 4. The capacitance of a varactor diode increases, when the reverse voltage across it is : (a) Decreased (b) Increased (c) Kept constant (d) None of the above 5. The main advantage of a point contact diode is that : (a) The ratio of forward current to reverse current is very high (b) Low input impedance (c) Its cut-in voltage is equal to zero (d) Its reverse resistance is infinite 6. Which one of the following is a Square law device ? (a) Zener diode (b) Crystal diode (c) Tunnel diode (d) Varactor diode 7. Match the given lists. List I…