Physics Investigating Resistance in a Wire

Investigating Resistance in a Wire The electric resistance is the name inclined to the tendency for a telegram to rival the movement of the electrons passage through it. The great the resistance the electrons come on the to a greater extent voltage is needed to proceed the current through the fit. Resistance is define by the pursuance equation: Resistance R= p.d across the telegram (V)                   circulating(prenominal) through the telegraph (I)          Key Factors There are umteen factors to be considered which can effect the resistance of a wire these accommodate temperature, current, oppressiveness of wire and the duration of the wire. The temperature leave place attain the resistance because as the temperature rises the atoms in the wire pull up stakes begin to tickle much meaning they leave alone entrance I the expressive style of liberation electrons. The problem with this regularity is tha t it tricky to vary the temperature of the wire and keep it at the analogous constant temperature. The current will effect the resistance because more electrons will be passing through the wire so if collisions do occur with atoms in the wire lots of the electrons will still get through. The thickness of the wire will affect the resistance because in a thick wire contradictory to the thin wire in that location is more billet for the electrons to move in thus trim down the count of collisions and the resistance. Though this is good method it is hard to make unlike thickness of the same wire easily. The length of wire will effect the resistance in a equivalent path the thickness but the longer the wire the greater the resistance because there will be more of a venture for the electrons and atoms to clash as there are more atoms in the longer wire thus making the length of wire proportional to the increase in resistance. If you want to g et a full essay, order it on our website: OrderCustomPaper.com

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