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Our aim is to find the factors, which make the strongest electromagnets.

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Introduction

AIM Our aim is to find the factors, which make the strongest electromagnets. APPARATUS Whilst doing this experiment, we will need the following apparatus: An iron nail, an electric current, some wire, a clamp, a boss, and some paper clips. VARIABLES To change the strength of the magnet we could change the iron core, change the number of coils, change the current, change the volts, or change the thickness of the wire. ...read more.

Middle

Here is my predicted graph: METHOD NUMBER OF COILS MADE NUMBER OF CLIPS ATTRACTED 10 10 20 10 30 18 40 30 50 42 60 50 70 64 80 80 90 88 100 96 We will set-up the apparatus in the appropriate way. We will change between using an iron nail, than vary the current strength, change the number of coils in the electromagnet (apart from these we will change nothing else). ...read more.

Conclusion

So my prediction was right, when you double the amount of coils, than the magnet picks up double the amount of paperclips. EVALUATION The experiment was a success. Our aim was to find a factor, which made the electromagnet stronger, and when we changed the number of coils the strength of the magnet changed. We did get a lot of anomalous results. There was no solid pattern in the results because there were always just a few more or a few less paperclips that were attracted, than were expected. HAMMAD NAVEED 9B ...read more.

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