Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
The factors affecting the current flow through a conductor at a constant temperature.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Brief I need to investigate the factors affecting the current flow through a conductor at a constant temperature. Introduction Resistance is a force found in currents that opposes the flow of electrons around a circuit. When this occurs energy is needed 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. Resistance is measured in Ohm's because George Ohm discovered it. Plan As I need to investigate the factors affecting current in a circuit I need to vary something connected to current. The ideal choice is Ohm's law (resistance = voltage/Current) because voltage and resistance are easily changed to vary the current. Ohm's law is sometimes written like this: V = Voltage C = Current R =...
To see the full version of this document, and 144,904 others
