29
4-11. In a half-wave rectifier, what is the
average voltage output when the peak
voltage is 300 volts?
1. 190.8 volts
2. 95.4 volts
3. 19.08 volts
4. 9.4 volts
Figure 4A.
Complete full-wave rectifier.
IN ANSWERING QUESTIONS 4-12 AND
4-13, REFER TO FIGURE 4-A. ASSUME
THAT THE VOLTAGE ACROSS THE
TRANSFORMER SECONDARY (POINT A -
POINT B) HAS AN RMS VALUE OF 480
VOLTS AC.
4-12. What is the peak value of the voltage
pulse across the load?
1. 169.7 volts
2. 215.8 volts
3. 339.4 volts
4. 480 volts
4-13. What is the average load voltage?
1. 339.4 volts
2. 240 volts
3. 216 volts
4. 189.6 volts
4-14. What is the ripple frequency of a full-
wave rectifier with an input line
frequency of 60 Hz?
1. 30 Hz
2. 60 Hz
3. 90 Hz
4. 120 Hz
4-15. The full-wave rectifier has which of the
following advantages over the half-
wave?
1. Higher average voltage and current
2. Larger number of components
3. Higher value of voltage
4. Better regulation
4-16. What is the average voltage output of a
full-wave rectifier that has an output of
100 volts peak?
1. 3.18 volts
2. 6.36 volts
3. 31.8 volts
4. 63.7 volts
4-17. The primary disadvantage of the
conventional full-wave rectifier is that
the peak output voltage is only one-half
that of the half-wave rectifier.
1. True
2. False
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