Diodes Quiz

What is the primary function of a diode?

• To generate electrical current

• To store electrical current

• To amplify electrical current

• To control the flow of electrical current

How is a diode represented in circuit diagrams?

• Square with a line

• Circle with a dot

• Triangle with a line

• Rectangle with a curve

What is the function of rectifier diodes?

• Amplifying AC

• Amplifying DC

• Converting DC to AC

• Converting AC to DC

What is the primary function of Zener diodes?

• To regulate voltage

• To store energy

• To emit light

• To amplify signals

What is the main application of light-emitting diodes (LEDs)?

• Overvoltage protection

• Signal modulation

• Lighting applications

• Voltage regulation

What is the main advantage of Schottky diodes compared to standard diodes?

• Slower switching speed

• Higher reverse-biased resistance

• Lower power efficiency

• Lower forward voltage drop

What is the function of varactor diodes in RF circuits?

• Light emission

• Voltage-controlled tuning

• Voltage regulation

• Signal amplification

How can diodes be tested using a digital multimeter (DMM)?

• By measuring the resistance

• By measuring the power output

• By measuring the voltage drop

• By measuring the current flow

In which type of circuits are diodes commonly used for rectification and power supply?

• Rectification and power supply circuits

• RF circuits and oscillators

• Switching circuits and logic gates

• Light emission in LEDs

What is the purpose of using diodes in signal modulation and demodulation?

• To control the flow of electrical current

• To amplify electrical current

• To convert AC to DC

• To process and transmit signals