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To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible.
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible. Apparatus: * Iron Rod * Leads * Power Pack * Crocodile Clips * Insulated Wire * Iron Nails * Voltmeter * Plastic Beakers * Electronic Balance Hypothesis: I expect the strongest electromagnet to have a 'soft' iron core; the highest number of coils (45); the strongest voltage (10V) and current and have the coils evenly spread across the iron rod. The 'soft' iron core means it changes easily between being magnetised and de-magnetised, it is perfect for electromagnets, which need to be turned on and off. From a previous experiment, using an electromagnet, I found out that the iron rod picked up many nails when turned on and dropped them all when switched off but the steel rod picked few nails up when switched on, yet held on to them even after the current was switched off. For this experiment, the iron rod is needed. A high...
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