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We have a solenoid made of brass with 50 turns/m . The diameter of the wire...

We have a solenoid made of brass with 50 turns/m . The diameter of the wire is 2 mm and when we stretch it its length is 15 m. What is the value of the magnetic field inside, in the center, when we apply a 6V DC voltage at its ends?

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Answer #1

Please note the resistivity of brass varies from 0.6x10-7-0.9x10-7 ohm.m depending on the copper in the brass.

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