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Physics 25 Online
OpenStudy (anonymous):

The image shows copper wire coiled around an iron nail and connected to a battery to create an electromagnet. Which will increase the strength of this electromagnet? A. using a battery with lower voltage B. adding another battery to the circuit C. using a larger nail D. using a larger switch

OpenStudy (anonymous):

I think B @Lady.Liv1776

OpenStudy (anonymous):

Hmm, yes B is right

OpenStudy (anonymous):

Thank you

OpenStudy (anonymous):

Yw :)

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