Day#11

What does a diode do in a circuit?

• Increases current

• Stores charge

• Allows current in one direction only

• Converts AC to DC

In forward bias, a diode:

• Blocks current

• Acts like a resistor

• Allows current to flow

• Reverses polarity

In reverse bias, a diode:

• Allows current

• Blocks current

• Increases voltage

• Generates power

Which terminal of a diode is positive in forward bias?

• Anode

• Cathode

• Both

• Neither

What happens to an LED if reverse current flows through it?

• It glows brighter

• It can get damaged

• It works normally

• It stores energy

Why is a resistor used with an LED?

• To block current

• To limit current and prevent damage

• To increase voltage

• To reverse polarity

What happens if a diode is connected in reverse with an LED?

• LED stays off and is protected

• LED glows brightly

• LED may burn

• Nothing happens

Which of these components needs protection from reverse current?

• Resistor

• LED

• Switch

• Capacitor

What does the stripe on a diode indicate?

• Anode (+)

• Cathode (–)

• Voltage rating

• Temperature

In which application is a diode commonly used?

• Converting AC to DC

• Creating heat

• Increasing resistance

• Storing charge