• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Investigating the factors which affect the flow of electricity

Extracts from this document...



Jenni Fisher 10.1

There are a number of ways in which resistance can be affected, some of which are the length of the wire. This can affect the resistance because if we increase the amount of wire, the current has to travel through more therefore increasing the resistance. Another way in which resistance can be affected is the thickness of the wire. If the wire is very thin, the current wont have as much room to pass through causing it to “struggle” through the wire, therefore causing ore resistance.

  Changing the metal, can also cause resistance, due to some metals are better conductors of electricity then others.

   To cause my resistance, I have chosen to change the length of the wire through out the experiment, can also cause resistance, due to some metals being better conductors of electricity then others.

   To cause my resistance, I have chosen to change the length of the wire through out the experiment.


...read more.


 To make this experiment a fair test we must ensure that:

  • We use the same current through out the experiment.
  • The power pack is turned off between readings. (So there are no false results)
  • Always have a constant heat.
  • Everything as to be exactly the same throughout the experiment. E.g. Same wires, same resistor, same ammeter. (The only thing that should be changed is the wire on the resistor.)

Results Table:

Results 1:


Ammeter readings


100 cm



90 cm



80 cm



70 cm



60 cm



50 cm



 40 cm



30 cm



20 cm



The set of results for “results 1” was more or less the same.

...read more.



In my opinion my results are fairly accurate, and I didn’t get any results that didn’t fit my set pattern. I found recording the results was very easy, and I had no difficulties. The only fault was the setting up of the experiment. I had connected everything right, but for some reason the ammeter was reading “minus”. We changed the power pack, the ammeter, and the voltmeter, but the ammeter was still reading “minus”. The only left to do was to check all the wires. We took each wire out one by one till eventually we found the loose connection.

       The only thing I think id change about the experiment, was to maybe turn off the power pack a bit sooner, because as I said earlier, towards the end the results seemed to jump drastically.

...read more.

This student written piece of work is one of many that can be found in our GCSE Electricity and Magnetism section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Electricity and Magnetism essays

  1. What factors affect the flow of current through a wire?

    to the length and therefore the collision experienced by the electrons will also be proportional to the length. Hence the resistance is expected to increase while lengthening the wire. Method The apparatus that I will use are: * Powerpack- This gives power to the whole appliance.

  2. Electromagnetism - investigating what effect increasing the number of turns in a coil on ...

    by turns I have expressed these factors more fully in the main method under the sub heading fair test. Main Method Apparatus * U-shaped soft iron core * 8 meters of wire * Power pack * 3 leads * Ammeter * Wire cutters and strippers * Clamp stand * 10g

  1. Investigate how resistance can affect the amount of current flow.

    Each material has a characteristic resistance. For example, wood is a bad conductor because it offers high resistance to the current; copper is a better conductor because it offers less resistance. In any electric circuit, the current in the entire circuit is equal to the voltage across that circuit divided by the resistance of the circuit.

  2. What Factors Affect The Amount Of CurrentThat Can Flow Down A Wire

    The moving people are electrons and the stationary people are protons. The hallway you are imagining is cold because the protons are not vibrating. As the protons start to vibrate they start to "get in the way of" the electrons more thus you have higher resistivity.

  1. A little bit about the life and times of Georg Simon Ohm:

    way and the Substitution method: 1- Voltmeter-ammeter method: Resistance up to about 50 ? can be measured using a circuit like this one below The current through a resistor of an unknown resistance R is set to any convenient value by adjusting the rheostat.

  2. Investigate the factors That Affect the Flow of Electricity Through a Conductor.

    The greater the e.m.f, the greater the current, as this means that more charge is flowing through the each point in the circuit in one second, because a greater push is supplied, so more energy is transferred. However there is also another factor to consider that affects the current, the resistance.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work