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Question: A solenoid used to produce magnetic fields for research purposes is 2.5m long, with an inner radius of 26cm and 1400 turns of wire. When running, the solenoid produced a field of 1.3T in the center.

Part A: Given this, how large a current does it carry?

I have tried this so many times and I cannot get the right answer! Any help with steps will be great! Thank you!

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