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Rectifiers – 1 – 2

6. The value of ripple factor of a half-wave rectifier without filter is approximately :

(a) 1.2
(b) 0.2
(c) 2.2
(d) 
2.0

ANSWER

EXPLANATION

7. The transformer utilization factor of a half-wave rectifier is approximately :

(a) 0.6
(b) 0.3
(c) 0.9
(d)
 1.1

ANSWER

EXPLANATION

8. …….. rectifier has the lowest forward resistance.

(a) solid state
(b) vacuum tube
(c) gas tube
(d) 
none of the above

ANSWER

EXPLANATION

9. The disadvantage of a half-wave rectifier is that the ……..

(a) components are expensive
(b) diodes must have a higher power rating
(c) output is difficult to filter
(d) 
none of the above

ANSWER

EXPLANATION

10. he ripple factor of a half-wave rectifier is ……..

(a) 2
(b) 1.21
(c) 2.5
(d) 
0.48

ANSWER

EXPLANATION

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