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Chemistry, 07.03.2020 06:25 Talinamoreno123

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Another student made an electromagnet with an iron nail with eight coils of wire wound around it connected to a 2-V battery. She wants to increase the strength of the electromagnet. What changes can she make to her design to increase its strength?

A. use a longer wire
B. wrap more coils of wire around the nail
C. use two 1-V batteries instead of a 2-V battery
D. use a 4-V battery

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