# Physics Coursework Gcse Resistance Wire

We didn’t encounter any problems, and as far as seen so far there were no major problems at all.Many steps could be made to make the results more accurate, and precise.The resistance of a wire depends on the number of collisions the electrons have with the atoms of the material , so if there is a larger number of atoms there will be a larger number of collisions which will increase the resistance of the wire.

We didn’t encounter any problems, and as far as seen so far there were no major problems at all.Many steps could be made to make the results more accurate, and precise.The resistance of a wire depends on the number of collisions the electrons have with the atoms of the material , so if there is a larger number of atoms there will be a larger number of collisions which will increase the resistance of the wire.

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If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy.

This causes more frequent collisions between the electrons and the atoms as the atoms move into the path of the electrons.

When measuring the wire lengths for the experiment, we didn’t cut fairly, and we measured out approximate lengths roughly depending on a ruler that was quite a it away.

One major improvement that would affect the results a lot would be to make these readings more accurate, this is because the length/width of the wire is THE MAIN variable of the experiment, and so if this is altered even by a extremely small amount, it would make a lot of a difference to the results.

EDIT: For an ideal conductor, there is no resistance and hence no energy losses. For calculation purposes it can therefore be ignored.

The word 'ideal' is another way of saying a resistance follows Ohms law without needing to invoke thermal considerations or any other parameter which would cause a deviation form Ohms law such as inductance, capacitance etc. The word 'ideal' is another way of saying the conductor follows Ohms law without needing to invoke thermal considerations or any other parameter which would cause a deviation form Ohms law such as inductance, capacitance etc. Following on from Physics Enemy, yes, that does imply that an 'ideal resistance' follows Ohms law perfectly and an 'ideal conductor' is perfect with no resistance and hence no energy losses.

Also if the length of the wire was trebled or quadrupled then the resistance would also treble or quadruple, and so on.

The experiment went fairly well, with good results and graphs obtained all round.

The word 'ideal' is another way of saying the conductor follows Ohms law without needing to invoke thermal considerations or any other parameter which would cause a deviation form Ohms law such as inductance, capacitance etc.

Before starting my coursework I have decided to choose 2 factors that will affect the resistance of a wire.

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