Diode Application Quiz

What is the purpose of a full-wave rectifier?

• To regulate voltage

• To store electrical energy

• To convert AC to DC

• To amplify current

What is the function of the arrow in the schematic symbol of a diode?

• Indicates the direction of conventional current

• Indicates the direction of electron flow

• Represents the resistance of the diode

• Represents the voltage drop across the diode

What happens when a diode is forward-biased?

• Anode is connected to the positive terminal of the source

• Cathode is connected to the negative terminal of the source

• Anode is connected to the negative terminal of the source

• Cathode is connected to the positive terminal of the source

What is the ideal behavior of a diode when it is in reverse-biased?

• Acts as an open (OFF) switch

• Acts as a closed (ON) switch

• Acts as a voltage regulator

• Acts as a current amplifier

What is the typical way to indicate the cathode of a diode?

• Marked by a band, a tab, or some other features

• Marked by a plus sign (+)

• Marked by a minus sign (-)

• Marked by a triangle symbol

What is the function of a transformer in a basic power supply?

• Amplify the voltage

• Step-up or step-down the voltage from the source

• Convert AC to DC voltage

• Regulate the current flow

What is the average value of the half-wave rectified output voltage?

• 31.8% of the peak voltage

• 75% of the peak voltage

• 50% of the peak voltage

• 63.7% of the peak voltage

What is the peak inverse voltage (PIV) of a diode?

• The peak value of the reverse-biased voltage

• The peak value of the forward-biased voltage

• The peak value of the input voltage

• The peak value of the output voltage

What is the advantage of using a center-tapped transformer in a full-wave rectifier?

• Allows the source voltage to be stepped up or down

• Provides electrical isolation from the rectifier

• Increases the PIV of the diodes

• Reduces the Zener impedance

What is the output voltage of a full-wave bridge rectifier in ideal diodes?

• Depends on the turns ratio of the transformer

• Half the secondary voltage of the transformer

• Twice the secondary voltage of the transformer

• Equal to the secondary voltage of the transformer