Lesson 3 – LED

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Purpose of this exercise was to change the brightness of a LED -light by changing the resistance.

First we connected the LED to the breadboard, continuing with the wires and the first resistor of 220 ohm.

With 220 ohm, the LED was the brightest.

After that we changed the resistor to 1K ohm, which showed that the LED lost some of the brightness

With 1K resistor, the light isn’t as bright as with 220 ohm

And lastly we tested the LED with 10K resistor.

With 10K resistor the LED was the dimmest.

This proves that the bigger the resistor, the dimmer the light in the LED.

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Published by noorasaarikettu9660

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