the factor that induces electromagnetism, as so when there is more current, there will be more electromagnetism. This is the same with the the number of coils,ed with the electromagnet, the more power is returned. The return and investment are not directly proportional. I think this because of the aforementioned scientific knowledge. Factors Affecting The Experiment:1) Current- This will change in one experiment. This will be kept constant by observing the ammeter and correcting any fluctuations on the D.C power pack.2) Magnetic strength of the Soft-Iron Core. This will affect the power of theelectromagnet. It will be kept constant by using the same soft-iron core.3)Way in which the wire is coiled. If the coils are coiled towards end, then one end will be more powerful than the other, and affect the results. I will try to keep the shape of the coils uniform.4) Way in which the iron filings are shaken. The harder the the magnet is shaken, then the more iron filings will be dropped, and the more the weight will change.Analysing EvidenceClear Patterns: Method-Experiment 1Here there is a very clear curve a the beginning, but the final three amps there is a similar per amp rate of increase suggesting that unlike experiment 2. This shows that one amp does increase the magnetic power one unit- the more expended, the same return on the investment. It is dissimilar to a thermistor current vs. resistance graph, and similar to a resistor current vs. resistance graph.Conclusions-Experiment 1The Scientific Explanation-Experiment 1As the current is passed on to the wire, it becomes a magnet itself, in accordance with the right hand rule. It magnetises the substance at the core. Inside the substance there are domains. When they are magnetised they aligned themselves onto the same direction , making it magnetic, This needs energy to perform and maintain the process, it is not cumulative so the more energy put into it the more will come out.Clear Patte...
