Electrical

Chem-E-Car Electrical System

By Shams Elnawawi in Electrical

February 11, 2017

Introduction In the “Chem-E-Car Reaction Mechanism” article, Jayg and Josh talk about the iodine clock reaction and how a light-dependent resistor (LDR) is part of the stopping mechanism. The LDR changes electrical resistance depending on how much light is hitting it; as light intensity increases, resistance drops, and vice versa. Theoretically, if we shone light on an LDR in an iodine solution as its colour went dark, light intensity as measured at the LDR’s surface would fall.

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