Regulated Power Supplies » Exercise – 1
19. A 5 mA change in zener current produces a 50 mV change in zener voltage. What is the zener impedance ?
(a) 1 Ω
(b) 0.1 Ω
(c) 100 Ω
(d) 10 ΩSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
GATE 2023 Total Info ENGG DIPLOMA UGC NET Total Info IES 2023 Total Info PSUs 2022 Total Info CSIR UGC NET Total Info JAM 2023 Total Info M TECH 2023 Total Info RAILWAY 2022 Total Info
Related Posts
Regulated Power Supplies » Exercise - 135. When load current is zero, the zener current will be ............ (a) zero (b) minimum (c) maximum (d) none of the above- Regulated Power Supplies » Exercise - 133. In a regulated power supply, two similar 15 V zeners are connected in series. The input voltage is 45 V d.c. If each zener has a maximum current rating of 300 mA, what should be the value of series resistance ? (a) 10 Ω (b) 50 Ω (c) 25 Ω (d) 40 Ω
- Regulated Power Supplies » Exercise - 131. Two similar 15 V zeners are connected in series. What is the regulated output voltage ? (a) 15 V (b) 7.5 V (c) 30 V (d) 45 V
- 555555555543. The 7812 regulator IC provides ________. (a) 5 V (b) –5 V (c) 12 V (d) –12 V
- 555555555579. The 7805 regulator IC provides ________. (a) 5 V (b) –5 V (c) 12 V (d) –12 V