Fatima has set up an experiment to make an electromagnet using two iron nails.
She wants to find out if the number of coils of wire around an iron nail would
affect the strength of an electromagnet.
What should Fatimah do to find out the strength of her electromagnets? Which
among the given is the stronger electromagnet?
Please I need it urgently!!!!!!
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the electromagnet with 20 coils will be the strongest.
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