When an electric current passes through thin nichrome or tungsten wire, the electrons cannot flow easily. Determine the resistance of a 1-mile length of gauge copper wire. The equation representing the dependency of the resistance R of a cylindrically shaped conductor e.
Most resistors have stripes or bands of colors painted on them. Greatly exaggerated in size we have a lattice of tungsten ions. Determine the resistance of a 1-mile length of gauge copper wire.
The video nbsp; Resistance and length of wire coursework College paper Help — physics coursework gcse it proved that changing the length of a wire does indeed affect the resistance resistance of a wire coursework. The greater the temperature the greater the resistance because electrons are colliding more causing friction.
Household circuits are often wired with two different widths of wires: These are positively charged, and vibrating fast, e. Discussion Overall, my results are very consistent with my predictions. To support my prediction and conclusion, I could do further experiments.
So I will do as many different types of metal that I can do with in the allotted time. This means that they collide more often and as a result sacrifice more of their energy to the neighbouring particles in the wire. Factors affecting Resistance, Electricity, Science Help.
There are a few data points that are farther away from the line of best fit than the others, but they are still consistent with the general trend. I will measure the resistance of 8 different lengths of nickrome wire using a tape measure.
I will switch off the power pack, move the crocodile clip that was at 5cm up to 10cm, and switch on the power pack. Resistors are one of the more common components in electrical circuits.
It involves collisions between the free electrons and the fixed particles of the metal, other free electrons and impurities. I will place one crocodile clip at 0cm on the wire and the other at 5cm to complete the circuit.
This confirms the first part of my prediction: Free GCSE physics coursework essay. I will then turn the power pack on and record what voltmeter and ammeter readings. The number of free electrons depends on the material and more free electrons means a better conductor, i.
I have taken three reading and have worked out the average, shown in red. The larger the resistance, the greater the voltage needed to push each ampere of current through it. I shall join the multimeter in series with a Direct current power supply i.
Revision than steel; length — longer wires have greater resistance Too high a voltage and the bulb will blow diagram 3. In addition, I will make sure I turn the power pack off after each reading.
Atoms of different elements impede the electrons by different amounts. The longer the wire. Apparatus Ensuring Accuracy To ensure accuracy I will record the voltage and the current three times every 5cm and take the average reading.
The thicker the wire the easier it is for the electrons to go past. Those materials with lower resistivities offer less resistance to the flow of charge; they are better conductors.
The free electrons are given energy and as a result move and collide with neighbouring free electrons. The relationship between resistance and the length of the wire is directly proportional this means that the greater the length of a wire the larger the resistance.
Like the resistance to water flow, the total amount of resistance to charge flow within a wire of an electric circuit is affected by some clearly identifiable variables. First, the total length of the wires will affect the amount of resistance. The longer the wire, the more resistance that there will be.
Like the resistance to water flow, the total amount of resistance to charge flow within a wire of an electric circuit is affected by some clearly identifiable variables. First, the total length of the wires will affect the amount of resistance.
Physics GCSE Coursework:Factors affecting the resistance of a wire Before starting my coursework I have decided to choose 2 factors that will affect the resistance of a wire.
I will do this by going through all of the factors that affect Physics Coursework Investigating Resistance of wires and its Physics Coursework Investigating Resistance of.
and thus the resistance of the wire. † Voltage across wire. Current in circuit. Temperature of wire. The variable marked with a * will be varied, the other input variables will be kept constant.
The output variable marked with a † will be measured. Predictions The longer the wire, the higher the resistance.4/4(1). Apr 19, · I will investigate the resistance of a wire in relation to its length.
Prediction. I predict that the longer the wire, the larger the resistance. This is because the free electrons in the wire bump into more atoms, thereby making it harder for electricity to thesanfranista.coms: Physics Coursework Objective: My objective in this experiment is to investigate one of the factors that affect the resistance of a piece of wire; the one I am investing is the length at constant thesanfranista.com objective in this experiment is to investigate one of the factors that affect the resistance of a piece of thesanfranista.com factor I chose was length.Physics coursework resistance of a wire variables