It is desired that a solenoid 39cm long and with 410 turns


It is desired that a solenoid 39cm long and with 410 turns produce a magnetic field within it equal to the Earth's magnetic field (5.0 x 10^-5 T). What current is required? Express in 2 significant figures.

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Physics: It is desired that a solenoid 39cm long and with 410 turns
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