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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. adding another battery to the circuit
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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. adding another battery to the circuit B. using a larger switch C. using a larger nail D. using a battery with lower voltage

User Erwin Van Ekeren
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a is the correct answer and this question should be in physics not chemistry
User Kim Miller
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