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Handout
Wikimedia

Wikipedia: Ohm's Law

For Students 9th - 10th
Wikipedia provides information on Ohm's Law, stating that the voltage drop is proportional to the current running through it.
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Handout
Science4Fun

Science4 Fun: Ohm's Law

For Students K - 1st
Brief explanation of Ohm's Law which provides the relationship between current, voltage, and resistance.