Hail the resastance

Ok this is not a violent thing, resestance is the abitity of a material to resist potential differenve (we all know voltage) and amperes(will talk about it more at a later date).

This project is designed for a beginner who does not want to pay large sums of money on a multimeter. It is esentialy a led and a battery with sum wires.

Things you will need:

• 2x aa 1.5v battery’s
• 1 battery holder (that holds 2 batterys aa)

It’s optional but recommended

• 1x led (any size preferably clear)
• 3x crocodile wires

Steps:

· Connect the positive terminal of the led to the positive terminal of the battery holder

· Connect a crocodile wire to the negative terminall of the battery(two wire 1 each)

· Put batteries in holder

· Attatch the unused sides of the crocodile wire to any material

The brighter the led glows the lower the resistance(hey I didn’t say this was perfect did I)

The final sensor should look like this

<>= electrodes (attatch to surface) (+) = positive terminal (-) = negative terminal (-->l--) = led (+)------------<> <>----------(-->l--)-------(-)