Bedatsky936
Answered

The image shows copper wire coiled around an iron nail and connected to a battery to create an electromagnet. Which factors determine the strength of this electromagnet? A. the voltage of the battery and the size of the switch B. the size of the nail and the size of the switch. C. the amount of electric current and the number of wire coils around the nail D. the number of coils of wire around the nail and the length of the wire in the circuit



Answer :

AL2006

The strength of the electromagnet depends on the amount of electric current
through the wire coil and the number of turns of wire in the coil. 

But the current through the wire depends directly on the voltage of the battery,
so that's also indirectly involved.


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