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

To Plan and perform an investigation to show how the strength of magnetism in an electromagnet is affected by the number of coils.

Extracts from this document...

Introduction

Antony Jones Electromagnetism coursework Aim To Plan and perform an investigation to show how the strength of magnetism in an electromagnet is affected by the number of coils Prediction I predict that the more coils of wire that go around the wire, the greater the electromagnetic will be. This is because the coils going around the wire makes a small amount of electromagnetism so if there is more coils the strength of the electromagnetism will be much stronger. Scientific Knowledge putting electric current along a wire creates a magnetic field around the wire. The more coils used in the electromagnet, the stronger the magnet is. If there is one coil, and another is added, then the two coils have twice the strength of one. ...read more.

Middle

Variables and Fair Test Problem How it will affect our experiment How we will solve it. Top pan balances The top pan balance could e slightly out Use the same top pan balance Spilling iron filings If iron filings are missed or dropped the results wont be accurate Be careful in carrying nail to top pan balance Number of coils If there is less or more coils than there should be then the results would be wrong because the electromagnet would be stronger Count the coils 2 times Range We cannot rely on 1 set of results because of all of theses problems So I will do the experiment 3 times for each concentration. Results Coils 1stexperiment (g) 2ndexperiment (g) Average (g) 20 2.08 2.18 2.13 30 2.65 2.70 2.68 40 4.54 4.48 4.51 50 6.65 6.52 6.59 60 7.27 7.24 7.26 70 8.40 8.34 ...read more.

Conclusion

same gradient, between 50 and 60 coils the line Flattens out, between 60 and 70 coils the line flattens out again to the same gradient as between 50 and 60 coils. Between 70 and 80 coils the line it at its steepest. Evaluation Our experiment when quite well we ended up with some good results, this is because we used the same amount Equipment and tried not to spill and iron fillings we had one result that was not accurate at 20 coils on the second experiment this may be because we put the nail in the filings to far, also the reading on the ammeter was flicking up and down slightly so this could have affected all my results. . I could have improved my experiment by making sure we done all the experiments in 1 day and with the same equipment and ammeter. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Waves 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 Waves essays

  1. Peer reviewed

    How does the number of coils on an electromagnet affect its strength?

    4 star(s)

    When 30 coils were wrapped around the iron nail, 42 paperclips were magnetised, but when 35 coils were wrapped around the iron nail, the number of paperclips supported dropped to 36. The method of spacing the coils out evenly along the iron nail only became apparent in the reiteration of the investigation.

  2. is sunbathing good for you?

    Skin Type Skin Description REACTION TO TANNING 1 Very fair Usually lots of freckles, red or sandy hair; blue or grey eyes High burn risk; skin turns red and peels. Advised not to tan in sunlight Do NOT use a sun beds 2 Fair Possibly with freckles; blond to brown hair; blue, green and grey eyes High burn risk.

  1. Our aim for this experiment is to find out a method of increasing the ...

    But they are more accurate then the results we collected from the preliminary work. Coils Current (amps) Paperclips 20 3.10 3 30 3.10 4 40 3.10 10 50 3.10 22 60 3.10 26 70 3.10 29 80 3.10 51 These last sets

  2. The aim of my experiment is to see what factors affect electromagnetism the most ...

    Experiment that will be used to test how much a varying current affects an electromagnet- In the varying current experiment once the circuit is set up and the initial amps and coil wraps are recorded I will place paperclips onto the electromagnet and see how many will stay onto it by magnetism.

  1. SIGNAL ANALYSIS

    C = 0.33?F The Laplace Transform for this filter is 1/(RCs + 1). Taking the poles to zero gives a cut off frequency of 1026Hz. Table of Results: Frequency Output Voltage Output Decibels 100 8 0 250 6.4 -1.94 500 4.8 -4.44 750 3.8 -6.47 1500 1.8 -12.96 2000 1.3

  2. What factors affect the strength of an electromagnet?

    We did the experiment twice for each one, to get and accurate reading. Results No. of turns 2v 6v 12v 10- 1st test 10mm 22mm 24mm 10- 2nd test 10mm 22mm 26mm 20-1st test 14mm 24mm 26mm 20- 2nd test 13mm 25mm 28mm 30-1st test 22mm 26mm 28mm 30- 2nd

  1. What factors affect the strength of electromagnetism?

    & stand * 2 Newton Meters (1 going up to 1N, and the other to 10N) * Crocodile clips Circuit diagram / set-up of experiment: Method 1. Set up circuit as in diagram. 2. Check that the power setting on the power pack says 4V and on DC (Direct current).

  2. Light is so common that we often take it for granted.

    See REFRACTION. Opaque materials absorb certain colours of light. For instance, a red book cover exposed to white light looks red because molecules on its surface absorb all the other colours in the light. The energy of the absorbed light quickly changes to heat, warming the surface.

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