# Rectifiers – 1 – 1

1. In a full-wave rectifier without filter, the ripple factor is :

(a) 0.482
(b) 1.21
(c) 1.79
(d) 2.05

EXPLANATION
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2. If the peak value of the input voltage to a half wave rectifier is 28.28 volts and no filter is use, the maximum dc voltage across the load will be :

(a) 220 V
(b) 15 V
(c) 9 V
(d) 14.14 V

EXPLANATION
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3. A single phase diode bridge rectifier supplies a highly inductive load. The load current can be assumed to be ripple free. The ac supply side current waveform will be :

(a) sinusoidal
(b) constant DC
(c) square
(d)
triangular

EXPLANATION
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4. Rectification efficiency of a full wave rectifier without filter is nearly equal to :

(a) 51%
(b) 61%
(c) 71%
(d)
81%

EXPLANATION
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5. If the output voltage of a bridge rectifier is 100V, the PIV of diode will be :

(a) 100√2 V
(b) 200/π V
(c) 100π V
(d) 100π/2 V

EXPLANATION
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