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# Find if the length of copper wire affects the resistance in a basic circuit. I will be interested in amps and volts in the circuit.

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Introduction

ANTHONY NAWROCKI

MRS DIBBS PHYSICS

COURSEWORK

## INTRODUCTION   In physics I will be investigating how length of copper wire affects the resistance. I am doing it in lessons in a group of four with Danny, George and Ali. We will use various bits of equipment and each person in my group will have their own job when doing the experiment. I was in charge of measuring out the copper wire. We will take results of six different lengths and we will get an idea of how the length of copper wire affects the resistance, voltage and amps.

FAIR TEST   To make sure I do not get any duff results I will always do every length we do twice and take the average of the two readings. We are finding out weather or not the length

Middle

### PRELIMINARY WORK  in our preliminary work we found our results were not what they should be they were of no fixt pattern therefore our results were no good but our results were good so we know what not to do if we did it again.

So when we did it again we had major changes to carry out. Our main was fault was our circuit was in the complete wrong order also our measuring was no good so now we knew what to do for next time.

Conclusion

I have one anomaly, which was in the final test, unlike all the others that have the rule the higher the amps and voltage the higher the resistance, the resistance in the anomaly decreases. I not quite sure if we carried out the final experiment wrong, I took a miss reading or just simply calculated wrong but I think its more than likely that I simply miss calculated.

I feel I had pretty good method as I had only one clear anomaly, which really is no bad thing, talking to other members of the class I think I had a better method and were more organized than first thought. At this time I can not really think of a procedure that be easier or one that would give more precise results to make them almost perfect I also think my method was pretty reliable.

CONCLUTION   I have learnt two things one, the longer the copper wire amps and volts are increased, two longer the wire more the resistance. Saying this my prediction has been proven correct, overall the experiment and coursework has been quite successful. I am very pleased with all outcomes.

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