Electromagnetism Investigation
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3) These together with the ammeter will be connected up to the power supply as shown in the circuit diagram.
4) A fixed amount of iron filings will be poured over the electromagnet with the power switched on.
5) The wire will be shaken until no more iron filings come off.
6) The power will be turned off. All of the iron filings that drop off will be weighed.
I will vary only the number of coils in this experiment. All other factors will be kept constant. I will measure the amount of iron filings at 10,20,30,40 & 50 coils of wire. I will repeat each experiment twice for accuracy. X will be equal to 10,20,30,40 & 50 coils of wire.
Safety Precautions
We will make sure that there is no bare insulation or any water near any electricatical equipment to prevent electrocution
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