Diode

What happens to the depletion layer when a diode is connected with the p-region to a negative pole?

• It becomes smaller.

• It remains unchanged.

• It enlarges.

• It disappears completely.

What is the main function of the depletion layer in a diode?

• To allow current flow.

• To stop current flow.

• To emit light.

• To change voltage.

What is the primary purpose of a diode in an electronic circuit?

• To allow current to flow in only one direction

• To store electrical charge for later use

• To increase the strength of a signal

• To convert electrical energy into light

What is a unique feature of a Zener diode?

• It allows current flow during breakdown.

• It blocks all current flow.

• It emits light.

• It changes color with voltage.

Why are Zener diodes used in voltage regulators?

• They emit light.

• They respond to voltage changes like switches.

• They are very cheap.

• They have a high resistance.

What happens when an LED is connected in a forward direction?

• It emits light.

• It changes color.

• It heats up.

• It blocks current.