How Much Current Does It Take To Burn Out An LED? | Science Project

This video tutorial explores the process of intentionally burning out LEDs by using progressively smaller resistors. It covers the importance of current limiting resistors, safety precautions, and the setup of a breadboard circuit powered by a 9V battery. The tutorial also explains how to use a multimeter to measure voltage and calculate current using Ohm's Law, and encourages experimentation with different resistor values to observe various LED failure modes.

What is the primary purpose of using a current-limiting resistor in an LED circuit?

• To increase the brightness of the LED

• To prevent the LED from overheating and burning out

• To decrease the voltage supplied to the LED

• To change the color of the LED

What safety equipment is recommended when conducting the LED experiment?

• Gloves and a lab coat

• A helmet and safety boots

• Eye protection and tweezers

• A face mask and earplugs

How is the LED connected in the breadboard setup?

• In parallel with the battery

• Directly to the battery

• In series with the resistor

• In parallel with the resistor

Why is it safer to measure voltage across a resistor rather than current directly in this experiment?

• It is easier to set up

• It reduces the risk of damaging the multimeter

• It allows for measuring higher voltages

• It provides a more accurate reading

What is the formula for calculating current using Ohm's Law?

• Current = Resistance / Voltage

• Current = Voltage + Resistance

• Current = Voltage / Resistance

• Current = Voltage x Resistance

What is the goal of the reverse engineering challenge in the experiment?

• To find the cheapest LED available

• To build a circuit with the longest-lasting LED

• To design the most spectacular LED failure

• To create the most energy-efficient LED circuit

What factors can affect the results of the LED experiment?

• The length of the LED legs

• The type of switch used

• The color and manufacturer of the LED

• The type of breadboard used