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Question:
Does the amount of wire in an electromagnet effect its strength?



Replies:
Yes, in a general sense. The strength of the electromagnet is determined by the product of the current through the wires and the number of turns of wire. Using a narrower wire raises the resistance and so lowers the effective current - therefore a wider wire increases the strength. Also, the more turns, the stronger, so the longer the wire the better.

Arthur Smith



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