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Brightness of Light


  • Potentiometer
  • Led
  • 9V Battery

Concepts :
Flow of Electric Current

Explanation :

Here the resistance of circuit is controlled using potentiometer. The resistanceĀ of the potentiometer can be changed by rotating it. If resistance is less the ledĀ will glow brightly .If resistance is more the current reduces and led glows dimly. Hence using a potentiometer, led and battery ,brightness of light can be controlled.

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