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

Strength of an Electromagnet Investigation

Extracts from this document...

Introduction

P

O

A

E

SPG

H                                          Lordswood Boys School

        My   Investigation        H

Name :  Malkeet Singh Marie

Set: 11Z

Title of investigation – Strength of an Electromagnet

Planning

Aim The aim of this experiment is to see whether the current in amps going through a coiled soft – iron core affects the strength of the electromagnetic field.

Fair Test       (Say how you will make your investigation a fair testby naming each variable you             will keep the same as you do the experiment.) I have made this experiment fair by undertaking the following points:

  • Keeping the voltage constant
  • Keeping the number of coils constant
  • Keeping the nature of the core constant

Diagram(Label it clearly.)

Apparatus List

  • Rheostat
  • Power supply
  • Compass
  • Ammeter
  • Electromagnet (Soft – iron core with coils (100))
  • Connecting wires
  • Ruler
  • Wire component
...read more.

Middle

Set up apparatus as shown in diagramCheck if the current in amps is correct to what is neededStart experimentThen repeat each experiment three timesCarry out the steps above for each different current settingFinally, find the average for each results and record in results table

Safety

                    To make this experiment safe for myself and others I will make sure that I disconnect the power supply before connecting the wires to the apparatus. I will also disconnect power after each experiment is over as there is a risk of heating up the core.

Measurements        

  I will measure the distance from were the compass is affected by the electromagnetic field. This will be measured in cm. It will be recording three times and then an average will be taken to help me gain a firm conclusion. I will vary the current in amps from 1 to 5 amps.

Prediction              

...read more.

Conclusion

Evaluating

Accuracy.  (How accurate are your results? How can you say? (Look at how smooth or otherwise you graph is, and also at how much spread there is on your repeat readings.)

Odd Results. Where there any – if so point them out. Try to explain how you might have got them.

Problems And Possible Solutions. ( (i) Describe any problems you had when doing your experiment. ii) How suitable was your plan of action for finding the answer to your question – what shortcomings were there in it?  iii) How could you improve or change your plan to get more reliable and accurate results?

Firm Conclusion? Explain whether your evidence is strong enough to support a firm conclusion. Mention the accuracy of the results, ‘smoothness’ of your graph (how close to the best fit line were the points?) and known shortcomings in the plan.

Further work. Can you say how you might get more evidence to support your conclusion or to extend your investigation?

...read more.

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. Marked by a teacher

    Are mobile phones dangerous? Research Project.

    3 star(s)

    There is also nothing contradicting him or his survey on the same website. Arguments against 1. The Danish study, which appears in the journal Neurology, involved more than 1,000 people.

  2. Electromagnets Investigation

    I base this prediction on a previous experiment we did where we tested how many paper clips were attracted to the electromagnet. In this experiment I found that the more turns on the coil, the stronger the magnet, the more paper clips were attracted.

  1. What factors affect the strength of an electromagnet?

    This shows to me that I have carried out a fair test and also it shows me that the electromagnets strength was altered with both the coils and the voltage. With our average and Anisha's group's average I can clearly see that they had 1 unexpected result and also it

  2. An Investigation to Determine the Effect of the Number of Turns around the Core ...

    the electromagnet rather than a soft iron nail as in the first experiment. The c-core was used because it is a more effective electromagnet than a nail, and because by using multiple types of cores, we could establish that there is, or is not always a direct proportionality between number

  1. Formulation Of A Theory.

    In addition, the 60 people must be asked in order to prevent the survey look as though answers were written by yourself to complete the data collection sheet. The line and angle will of course be measured accurately before the questionnaire will be carried out.

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

    Variable resistor The dotted line above in the diagram shows where I will include the variable resistor if I use it. At the moment all I've talked about so far in my method is how I will make the experiment. I will now say how I will do the experiment.

  1. Physics investigation- Strength of Electromagnet

    To vary the current will keep the voltage output from the power pack at 13 volts and then using a variable resistor to adjust the current. To measure the current we will use an ammeter. The electromagnet will be 5mm from the scales and magnet as we found in the

  2. Electromagnetism Investigation

    We will test to see whether our prediction is correct by the results we collect to see whether the more turns on the coil, made the electromagnet stronger by the distance of the compass to the electromagnet. To back up the first experiment we will conduct a second experiment using paperclips.

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