... is resistance. Various factors affect the resistance. Length of wire - the longer the wire is, the more collisions there are between the eelctrons and the atoms - so resistance increases. Thickness of a wire - thin wire means less spces for electrons to pass, so higher resistance. Material of wire ... factor that influences the resistance is the nature of the material. Hence, Resistance of a wire = length of wire multiplied by a constant for a given material all divided by, Cross-sectional area i.e. R = L/a × p ohms where R is resistance, L is length of wire, a is cross-sectional area and p ...

How Does Resistance Change With Length Of Wire.doc "For instance the length of wire, this is a variable as the length of wire increases the time taken for the electricity to pass through it resulting in a higher resistance, e.g. like water flowing through a pipe as the water flows it encounters ... resistance of a piece of wire 80 cm long which has a resistance of 4.2 and then of a piece 160 cm long which has a resistance of 9 we can see that there is all most a doubling effect going on, which will become apparent when I graph this data". As you imply in the last part of the sentence, picking ...

... homework on the resistance in a wire. I need to explain what goes on inside the wires, about atoms and electrons I think, but I don't have a clue! Please help, i'm desperate! Thank you in advance! Sophia Current is the flow of free electrons through a wire. The atoms in the wire tend to block this ... resistance. Various factors affect the resistance. Length of wire - the longer the wire is, the more collisions there are between the eelctrons and the atoms - so resistance increases. Thickness of a wire - thin wire means less spces for electrons to pass, so higher resistance. Material of wire ...

How the length of a piece of wire affects the resistance I am doing some physics coursework on the subject, 'what factors affect the resistance of a piece of wire?' and i would like any background infromation that could help me to construct a good plan and method for my experiment that will give me ... electrons along a wire. The particles within the wire tend to impede the flow - they provide "resistance". The longer the wire is the greater the resistance is. As the current has to push through more particles. A thicker wire provides less resistance than a thin wire because there are ...

... the resistance will be higher. In general the resistance of a given length of conductor is inversely proportional to its cross-sectional area. Apart from the effect of temperature the only other factor that influences the resistance is the nature of the material. Hence, Resistance of a wire = length ... wire multiplied by a constant for a given material all divided by, Cross-sectional area i.e. R = L/a × p ohms where R is resistance, L is length of wire, a is cross-sectional area and p represents the constant. It can therefore be seen that resistance increases with wire length ...

... have done resistance experiment on nichrome wire of lengths 25 50 and 100 cm. Now the resistance increases with length. You have to plot a graph too and show this. For the explanation part you have to write WHY the resistance increases. The answer is simple. As the length of the wire increases the ... hit the walls of the wire more often. This means that they transfer their energy to the wire [as heat which explains why the wire heats up]. and so the increase in the length means an increase in electron collision with the walls of the wire. You also have to draw graphs [line graphs] for these ...

... is about the wire that cuases resistance. Actually, the electrons don't really 'squeeze together'- it is just that the atoms of the wire impede their flow, so that they 'GET squeezed together'. Resistance is not electrons colliding with each other, but with the particles in the wire. FAIT TESTING ... The dependent variable is what you measure - the resistance (or the current, from which the resistance is determined). Why did you use two different wires (not wrong - just needs explaining)? CONCLUSIONS "Therefore when I doubled the length of my wire the number of electrons across it doubled." This ...

Resistance of a wire. Evaluation: Extending the investigation... (EVALUATION) dear tutor, i would like to know how i can extend my investigation for the resistance of nichrome wire (how length affects resistance of wire). what variables could i include to extend the investigation? how would these ... is "What affects the resistance of a wire" or similar, you can get marks for using other variables. The obvious ones would be either temperature of material of the wire. If your problem is"Does length affect the resistance of a wire", using other variables will NOT extend the ...

resistance of a wire "I predict that, as the length of the wire doubles, the resistance will also double, but as the cross-sectional area of the wire doubles, the resistance halves. This means that the length will affect the resistance more than the thickness will." The first part of this ... resistance equally, but in opposite directions! I don't know why you are bothering to compare two variables - you get no extra marks for doing so. You could get the marks just by studying length. It is about 8 years since the mark scheme gave extra credit for using 2 variables! "Resistance is ...