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

Aim: To investigate the resistance of the 3 different types of wires, constantan, copper and nichrome, by using 1 set of circuit.

Extracts from this document...


Investigating resistance



To investigate the resistance of the 3 different types of wires, constantan, copper and nichrome, by using 1 set of circuit.



A metal alloy made of 45 percent Nickel and 55 percent Copper. Constantan wire is used chiefly in electrical instruments and other equipment, which can take advantage of its unusual physical property, which is that, even over wide variations in operating temperature, its electrical resistance stays at an almost constant value. The melting point is 1221 to 1300 °C. Has low conductivity.


Wire commonly made from copper by drawing from a hot-rolled rod without annealing; however, the smaller sizes may involve intermediate anneals. Melting point is 1084.62 °C. Has high conductivity.


A nickel-chromium alloys with high electrical resistance and an ability to withstand high temperatures; used for resistance heating elements.

...read more.



Take experiment in same temperature condition

Because these affect to wires and changes the original resistance

Material used in Circuit

Use all the same materials

Because condition will be changed and changes the data


Power pack

Constantan wire

Copper wire

Nichrome wire

Standard wire

Crocodile clip




-   Ensure no water around because they are conductor and charges electricity

  • Be careful with wire getting burned due to high voltages
  • Be careful with wire heating up
  • Watch out on sparks occurred when using crocodile clip


  1. Connect up a series circuit
  2. Attach an ammeter with a gap between two wire with crocodile clip
  3. Attach wires in the circuit
  4. Connect voltmeter in parallel to wires
  5. Let the current go through
...read more.


Our data is reliable because we had 2 trials to ensure our results. No anomalous data were occurred in our experiment. However, it could have be occurred by setting the circuit wrongly for example connecting ammeter/voltmeter in parallel/ series or connecting negative and positive opposite. This topic is all related to environments because the wire we used are from natural resources and we were investigating resistance of them.

...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. Marked by a teacher

    Investigate young's modulus behind Constantan and Copper.

    4 star(s)

    The property of the other elements is what makes an alloy stronger then a pure metal. Necking does not occur in metals, it is quite hard for it to occur, this is because there is no dislocation of atoms, which occur within the structure to make this, stronger, and hold its atoms together.

  2. Marked by a teacher

    Draw stress and strain graphs for the metal copper and the alloy constantan. Calculate ...

    4 star(s)

    load/force applied to it then it would go back into its original length. However if more load/force is applied and the material exceeds its elastic limit then the material yields and it becomes permanently deformed. (Adapted from Physics CD-Rom 40s).

  1. Marked by a teacher

    Resistance Aim: my main aim is to investigate the factors that affect the resistance ...

    3 star(s)

    Prior information of electrical circuits and the factors of resistance will be necessary. The definite objective will be the study on the subject matter which is proven by experimentation. Resistance: Resistance is when electricity is concerned, is the ability of a substance to resist the flow of electricity through it.

  2. Peer reviewed

    Investigation in resistance in wires

    5 star(s)

    We retested because we believed that all of these 4 problems were outliers for one reason or another, so to make the test fair we had to do the test again. The recorded results were then plotted into a graph that showed a positive correlation between current and voltage.

  1. Resistance and Wires

    This will ensure that a clear range of potential difference can be recorded from beginning to end of the test wire. Heat in the test wire at this voltage should not have been a problem, providing the power is turned off in between each recording to ensure that there is no gradual build up of heat in the test wire.

  2. The aim of the investigation is to calculate the young's modulus of copper and ...

    The variables in this experiment: - -Thickness of wire: the thicker the wire the more force needed to extend the wire and vice versa -Temperature: the temperature affects the wire as if the wire is warm it will extend further where as a colder wire will not make the same

  1. Copper, Constantan, Manganan and Nichrome - which is the best conductor?

    (I used the book "Tables of Physical and Chemical Constants" by Kaye and Laby to gather this information.) In brief, I predict that the copper that is present in the piece of wire, the lower the resistance will be. The wire with the lowest resistance will be the best conductor.

  2. My aim is to investigate the rate of energy loss in different types of ...

    83.5 82.75 80.5 79.25 78 77 75.75 74.75 Cup with tin foil 1st reading 2nd reading 87 94 85 93 83.5 90 82.5 88 81 86.5 79.5 85 78.5 85 77.5 83 76.5 81.5 75.5 80 74 79.5 Average 90.5 88.5 86.75 85.25 83.25 82.25 81.25 80.25 79 77.75 76.75

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