Oscillators – 1 – 4

16. Oscillators have :

(a) No feedback
(b) Negative feedback
(c) Positive feedback
(d) Either positive or negative feedback

ANSWER

EXPLANATION

17. Which of following oscillator will be preferried for generating for generating 1 MHz ?

(a) Colpilts oscillator
(b) Wein bridge oscillator
(c) Phase shift oscillator
(d) Any of the above

ANSWER

EXPLANATION

18. For oscillator to start, the loop gain of the oscillator must be :

(a) Infinitely high
(b) More than one
(c) Exactly one
(d) Less than one

ANSWER

EXPLANATION

19. Which of the following is an oscillator with best frequency stability ?

(a) Crystal oscillator
(b) Clapp oscillator
(c) Phase shift circuit
(d) Multi vibrator

ANSWER

EXPLANATION

1 2 3 4

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