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Regulated Power Supplies – 1 – 3

11. The rupture of co-valent bonds will occur when the electric field is …………

(a) 100 V/cm
(b) 0.6 V/cm
(c) 1000 V/cm
(d) more than 105 V/cm

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

12. In a 15 V zener diode, the breakdown mechanism will occur by …………

(a) avalanche mechanism
(b) zener mechanism
(c) both zener and avalanche mechanism
(d) none of the above

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

13. 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

Answer
Answer : (a)

Explanation
No answer description available for this question. Let us discuss.

14. A zener voltage regulator is used for ………… load currents.

(a) high
(b) very high
(c) moderate
(d) small

Answer
Answer : (d)

Explanation
No answer description available for this question. Let us discuss.

15. 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

Answer
Answer : (b)

Explanation
No answer description available for this question. Let us discuss.

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