There are many variables in this investigation. The resistance of the wire could
Original post by jamaicangal It is on electrical circuits.
In the experiment we set up a circuit and changed the length of the wire then recorded the readings for voltage and current. What would the other be?
Thanks so so much! The longer the wire, the more resistance it has.
You can never tell if you have gathered systematic error, so you can never really tell if your results are reliable. Making repeated measurements allows you to take an average, which decreases random error not systematic error. Sources of error really depend on your method; you should look at every stage in your method and see what measurements you are taking and what uncertainties are introduced at each stage.
As an example; could you measure the length of your wire with infinite precision? My general advice would be to make sure you understand the difference between systematic and random error, to look up resistivity on the internet, and to be able to define properly the words precision, reliability, and accuracy.
If you can do that the rest will follow I reckon.About GCSE: The General Certificate of Secondary Education (GCSE) is an academically rigorous, internationally recognized qualification (by Commonwealth countries with education systems similar or identical to the UK education system) awarded in a specified subject, generally taken in a number of subjects by pupils in secondary education in England and Wales over two years (three years in.
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Learn more. Extended experimental investigation: Electricity from the measurement of the total resistance to give the resistance of the copper wire that was to be measured.
The alligator clips were clipped together, so that the resistance of the wires of the Method. Wire lengths (independent variable) of 20 cm, 40 cm, 60 cm and 80 cm were used. Resistance isa 12 pdf files past papers archive, 4 aqa gcse physics resistance isa methodpdf resistance isa method logiqade, aqa gcse physics resistance isa method why should be this book to read and where is the place to get it, even the soft file.
Illustrated ed. Bristol: Institute of Physics, 2 Stof its greater andard International 3 Also called a conductive elements Physics Investigation: Aishwarya Moothan () HYPOTHESIS General Prediction: I predict that that wire with a larger circumference will give less resistance to current than a wire with lesser circumference.
Method First a length of wire over a meter long is taped to a meter ruler. The positive crocodile clip is attached at 0cm. And the negative is moved up and down the wire, stopping at 10, 20, 30, 40, 50, 60, 70, - Wire Resistance Investigation Aim: To investigate how the length of the wire affects the resistance The resistance of a wire.