Ohm's Law Experiment #1





Goal:

The purpose of this experiment is to understand Ohm's Law.

Setup:

The experiment setup consists of a very simple circuit. This circuit has a variable power source and a variable resistance. The power source can be changed from 1.5 Volts to 15 Volts. The resistance can be changed from 1 to 10 Ohms. The current is then determined according to Ohm's Law.

Background:

Ohm's Law deals with the relationship between voltage and current in an ideal conductor. This relationship states that the potential difference (voltage) across an ideal conductor is proportional to the current through it. The constant of proportionality is called the "resistance", R.

Mathematically this law is expressed as:

V = I R

Where:

V = Voltage (the potential difference between two points which include a resistance).

I = Current flowing through the resistance.

R = Resistance.