Physics Coursework Theory - The resistance of a wire.

Theory behind my experiment Thickness (cross sectional empyrean of the electrify), length, and temperature all have solely about effect on the standard of resistance created in a telegraph. Another reckon is the conductivity of the material we ar using. close to metallic elements are just to a greater extent electrically conductive than others. As long as I use the same pillow slip of metal for each wire, my experiment will remain fair. Cross sectioned Area The thicker the wire, the less resistant it is. This is because in that respect are more electrons in the metal that are free to cash in ones chips as a current. Also, in that respect is more shoes for the electrons to flow, so more screw fit down. This is often compared to piddle in a pipe up; the thicker the pipe, the more weewee that can flow through it. Temperature The temperature of the wire also affects the resistance. This happens because as the metal add ups warmer, the metal ions in the wire app ly kinetic energy and start to vibrate. As their feat becomes more erratic they are more likely to get in the way and disrupt the flow of the electrons and in that locationfore adjoin the resistance.

distance of the wire This is easier to explain using the hallway analogy. Imagine in a corridor, there are some people (electrons) nerve-wracking to move, and there are some people (ions) staying still. If the corridor was actually short, there is a high chance that the electrons will make it to the end. If the corridor is very long, there is more chance of the electrons colliding with an ion and therefore decreas ing the amount of current. ! If you essential to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay