Diode Functionality and Applications Quiz

What is one method used to test a diode?

• Using a multimeter

• Observing light emission

• Measuring resistance with an ohmmeter

• Checking temperature changes

In which application are diodes commonly used?

• Signal amplification

• Voltage regulation

• Data storage

• Frequency modulation

What is a diode?

• A device that stores electrical energy

• A device that allows current to move through it in one direction with far greater ease than in the other

• A device that converts electrical energy into mechanical energy

• A device that amplifies electrical signals

What happens to a diode when the battery polarity allows electrons to flow through it?

• It becomes reverse-biased

• It becomes forward-biased

• It becomes neutral

• It becomes inactive

What does the diagram of an ideal diode illustrate about the relationship between current and voltage?

• Current flows only when forward voltage is applied.

• Current flows only when reverse voltage is applied.

• Current flows regardless of the voltage applied.

• Current does not flow at all.

Which layer of a diode is positively charged?

• N-type

• P-type

• A-type

• B-type

What happens when p-type and n-type semiconductors are joined?

• Electrons flow from p-type to n-type

• Electrons flow from n-type to p-type

• Protons flow from n-type to p-type

• Protons flow from p-type to n-type

What is the region called that is created by the flow of electrons in a P-N junction?

• Depletion region

• Saturation region

• Conduction region

• Valence region

What is the term used for the tiny amount of current that flows in a real diode under reverse bias?

• Forward current

• Reverse current

• Leakage current

• Saturation current

During reverse bias, what does the negative terminal of the battery do?

• Attracts electrons in the positive region.

• Attracts holes in the positive region.

• Repels holes in the negative region.

• Repels electrons in the positive region.