LED (Light Emitting Diode) Quiz

easy 5 Questions
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Question 1 of 5

What does LED stand for?

LED is an acronym, and 'Light Emitting Diode' is its full form.
Question 2 of 5

In an LED, light is produced when:

Light emission occurs due to the recombination of electrons and holes.
Question 3 of 5

Which of the following is a key advantage of LEDs compared to incandescent bulbs?

LEDs are far more energy efficient, consuming significantly less power.
Question 4 of 5

What component is essential to limit current and protect an LED from damage?

A resistor is used in series with an LED to limit the current.
Question 5 of 5

What is the typical polarity for an LED? (Which leg is positive/anode?)

The longer lead indicates the positive (anode) side of the LED.
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