46. Nota
47. Voltage regulators keep a constant ________ output voltage when the input or load varies within limits.
(a) dc
(b) ac
(c) ripple
(d) none of these
48. Nota
49. In a half-wave rectifier, the dc voltage level is ________ the ripple voltage level.
(a) smaller than
(b) the same as
(c) larger than
(d) None of the above
50. Voltage regulation requires ________.
(a) only line regulation.
(b) only load regulation.
(c) a constant load.
(d) load and line regulation.
Related Posts
Regulated Power Supplies » Exercise - 115. A zener voltage regulator will cease to act as a voltage regulator if zener current becomes ............ (a) less than load current (b) zero (c) more than load current (d) none of the above- Regulated Power Supplies » Exercise - 113. In a zener voltage regulator, the changes in load current produce changes in .......... (a) zener current (b) zener voltage (c) zener voltage as well as zener current (d) none of the above
- Regulated Power Supplies » Exercise - 121. What is true about the breakdown voltage in a zener diode ? (a) It decreases when load current increases. (b) It destroys the diode. (c) It equals current times the resistance. (d) It is approximately constant.
- Regulated Power Supplies » Exercise - 114. A zener voltage regulator is used for ............ load currents. (a) high (b) very high (c) moderate (d) small
- 5555555555104. 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