Answer Happy

1. 2. 3. 4. Peak inverse voltage (PIV) rating of a diode is the A. minimum voltage that can be applied to a diode during reverse bias B. maximum voltage that can be applied to a diode during reverse bias C. minimum voltage needed for the diode to operate in forward bias D. maximum voltage that can be applied to a diode in forward bias Choose the correct statement about a rectifier circuit. A. It amplifies a DC signal. B. It converts an ac signal to a DC signal. C. It is used to increase the DC level of an ac signal. D. It is the last block of DC power supply. The output frequency of a half-wave rectifier is A. half the input frequency B. C. four times the input frequency D. Assume the output voltage Vo is connected in series to the resistor and ground. Which diodes arrangement will produce a positive output voltage Vo? B. A. C. 韭 D D D₁ D₂ D₂ twice the input frequency equal to the input frequency D Du D₁ D₁ D₁
5. What is the average voltage Voc) of the waveform in Figure Q.5? Vo(V) imm Figure Q.5 6. A. 1.91 V C. 2.12 V 8. B. 1.27 V D. 2.27 V Which of the following statement is true? A. A basic half-wave rectifier consists of four diodes. B. For a full-wave bridge rectifier, two diodes conduct during each half cycle of the input. C. The output frequency of a half-wave rectifier is twice the input frequency. D. None of the answers above. 7. By assuming that the output voltage of a half-wave rectifier and a full-wave rectifier has the same positive peak value with the same input signal, the average output voltage of the full-wave rectifier is higher than the half-wave rectifier because A. the full-wave rectifier uses more diodes B. there is a shorter time interval between peak values in a full-wave rectifier C. the frequency of a full-wave rectifier is halved compared to the input frequency D. its diodes PIV are higher In the operation of a half-wave rectifier with a capacitor-input filter, the ripple factor can be lowered by the value of the filter capacitor and the load resistor. A. decreasing, decreasing C. increasing, decreasing B. decreasing, increasing D. increasing, increasing
9. Ripple factor is an indication of the effectiveness of the filter in a rectifier. Which statement is false? A. With the same input frequency, load resistor R and filter capacitor C; the ripple factor of a full wave rectifier is larger than the half wave rectifier. B. The larger the value of filter capacitor, the better the ripple factor. C. The smaller the ripple voltage, the better the ripple factor. D. The larger the value of average output voltage, the better the ripple factor. 10. Referring to Figure Q.10, which is the output of a full-wave rectifier with a capacitor filter? A B. Figure Q.10 t mm.. D.