The magnitude of the magnetic field strength due to the Earth at a certain point is 68.5 µT. In order to generate a magnetic field as strong as this using a solenoid, with a current of 1.4 A passing through it, what should be the linear density of turns, n?

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4. The magnitude of the magnetic field strength due to the Earth at a certain point is 68.5 µT. In
order to generate a magnetic field as strong as this using a solenoid, with a current of 1.4 A
passing through it, what should be the linear density of turns, n?
Transcribed Image Text:4. The magnitude of the magnetic field strength due to the Earth at a certain point is 68.5 µT. In order to generate a magnetic field as strong as this using a solenoid, with a current of 1.4 A passing through it, what should be the linear density of turns, n?
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