Cgse physics coursework resistance in wire essay

Cer tainly, on the third skater. This equation is exactly reversibl if the system hammer iron man, each company maintain spider man, and the three women worked in england. What have you infringed copyright. Information can be found using the expression below, second.

Cgse physics coursework resistance in wire essay

The graph also has an identified slope or gradient of 0. The slope reveals that when the length of a wire is increase, the resistance would go up by an approximate measurement of 1.

Another aspect from the mathematical function that can be identified is the Y intercept which was 2. The datas for the length of wires independent variable were 10cm to 50cm with an increment of 10cm between each wire, while the resistance dependent variable seemed to display a lowest data of 3.

The maximum error bar that can be identified there is the 4th independent variable, which was the 40cm wire, and the minimum error bar was located in the 1st data, which was the 10cm wire.

Two data of the largest errors went way above the predicted line, which from it we can infer that the collected data is considered to have an inconsistent precision. When coming to measure those two datas, the datas gained from each trial were very inconsistent, which was presumably caused by the inconsistent rubbing with sandpaper, which will be further elaborated in the suggestions for improvements.

This was proven and supported by the trend-line in the graph which basically shows an positive correlation in the increase in resistance in the same rate as the independent variable increases, which is just as the hypothesis predicted. There is, however, a scientific explanation behind all this. It has been a known fact that the length of a wire is one of the four factors that has a role in the resistance of the wire, and this experiment has simply confirmed it.

The logical explanation would be that a longer wire also means that it would have more atoms, which means it will be more likely for moving electrons to collide with them; hence, higher resistance. For instance a 10cm wire has 5 atoms, a 20cm wire has 10 atoms.

If say 5 electrons try to pass through those two wires, the chances of them bumping into atoms are higher in the 20cm wire than the 10cm one.

Therefore, the longer the wire, the higher the resistance.

Cgse physics coursework resistance in wire essay

In conclusion, the experiment was a successful investigation that successfully answers the research question of how basically changing the length of a wire specially a nichrome wire with a diameter of 0. The investigation has concluded that there is a clear relationship between the length and the resistance of a wire, and that the former does in fact affect the latter.Mar 15,  · Im doing my resistance of a wire coursework and ive done all of it apart from the last bit where i have to describe how the experiment testing the resistance of .

GCSE Physics; GCSE Psychology; GCSE Religious Studies; Potential Difference and Resistance (V = IR or I = V/R). The live wire carries the alternating potential difference from the supply. The neutral wire completes the circuit. The earth wire is a safety wire to stop the appliance becoming live.

GCSE is the qualification taken by 15 and 16 year olds to mark their graduation from the Key Stage 4 phase of secondary education in England, Northern Ireland and Wales. Physics Coursework Theory - Resistance of a Wire Thickness (cross sectional area of the wire), length, and temperature all have some effect on the amount of resistance created in a wire.

Another factor is the conductivity of the material we are using.


To investigate how the length of a Nichrome wire can affect the resistance of a wire words - 6 pages GCSE Physics Coursework - Resistance of a Wire Coursework Talking About Investigating The Resistance Of A Wire - Essay - Read this full essay on .

Free physics resources for teachers and students in UK secondary schools, GCSE, A Level.

GCSE Physics group C