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Factors affecting the strength of an electromagnet
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| Submitted: Mon Sep 08 2003
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Factors affecting the strength of an electromagnet Aim In this investigation I am going to find out what factors affect the strength of an electromagnet. I will do this by changing different factors of the investigation and seeing what affect they have. Background Information Electromagnets are a solenoid, a coil of wire, with a 'soft' iron inside. A magnetic field is created around the wires of the solenoid as the current flows through it. The magnetic field strength is increased by the 'soft' iron core, as iron is magnetically 'soft', meaning it changes easily between being magnetized and demagnetized. As iron is 'soft' it is perfect for electromagnets which need to be turned on and off. Some key factors that may affect the strength of the electromagnet are; * The size of the current, if you increase the current then the electromagnet will be stronger as more electricity will be passing through it, therefore will make it stronger...
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