Multiple Choice Questions - Rectifier

What is the primary function of a rectifier?

• Convert DC to AC

• Convert AC to DC

• Convert DC to DC

• Convert AC to AC

In a half-wave rectifier, what happens during the negative half-cycle of the AC input?

• The diode conducts and allows current to pass

• The diode blocks the current

• Both positive and negative halves are rectified

• The output voltage increases

Which of the following is true about the output of a half-wave rectifier?

• It is a continuous DC signal

• It consists of both positive and negative cycles

• It uses only the positive half-cycles of the input AC signal

• It uses both half-cycles equally

In a full-wave rectifier, how is the negative half of the input AC signal utilized?

• It is blocked by the diode

• It is converted into a positive voltage

• It is not used

• It decreases the overall efficiency

What is the primary advantage of a full-wave rectifier over a half-wave rectifier?

• It uses both the positive and negative halves of the AC signal

• It is more complex

• It generates more AC output

• It reduces the AC voltage to zero

What is the ripple frequency of a full-wave rectifier if the input AC frequency is 50 Hz?

• 25 Hz

• 50 Hz

• 100 Hz

• 200 Hz

Which component is used in both half-wave and full-wave rectifiers?

• Capacitor

• Inductor

• Diode

• Transformer

What is the peak output voltage of a half-wave rectifier if the peak input AC voltage is 10V and the diode forward voltage drop is 0.7V?

• 9.3V

• 10V

• 10.7V

• 0.7V

In a bridge rectifier, how many diodes are used?

• 1

• 2

• 3

• 4