Resistance is a force, which opposes the flow of an electric current around a circuit so that energy is required to push the charged particles around the circuit. The circuit itself can resist the flow of particles if the wires are either very thin or very long. E.g. the filament across an electric bulb is quite thin as needs to resist the flow of particles for the bulb to glow.

George Ohm discovered that the voltage of a circuit is directly proportional to the current flowing through the circuit. This means that if you triple one, you triple the other. He also discovered that a circuit sometimes resists the flow of electricity. He called this resistance. He then came up with a rule for working out the resistance of a circuit:

Below are the facts that I need to consider when investigating the resistance of metals:

1. Electrical conductivity involves movement in charged particles. An electrical current means they are Mobile Charged Carrier.

In metals this means moving electrons. In graphite (carbon) the current is due to the electr

Some topics in this essay:
Charged Carrier, Results Conclusion, Fair Test, R=V/I Prediction, Theory Resistance, George Ohm, Safety Electricity, Resistance Below, Volts Nichrome, , nichrome wire, length wire, wire resistance, charged particles, resistance current, resist flow particles, fair test, circuit circuit, thickness wire, resist flow, current voltage, current due electrons, length wire resistance,