Physics, 23.12.2020 17:20 cfonse11

What current in a solenoid 15-cm long wound with 100 turns would produce a magnetic field equal to that of the Earth, 5 cross times 10 to the power of negative 5 end exponentT ?

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What current in a solenoid 15-cm long wound with 100 turns would produce a magnetic field equal to t...