Computing the magnetic field strength
A piece of wire with mass per unit length 84 g/m runs horizontally at right angles to a horizontal magnetic field. A 6.5A current in the wire results in its being suspended against gravity.
What is the magnetic field strength? ( in T)
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The magnetic field of earth at a certain location is directed vertically downward and has a magnitude of 50microT. Find the direction and magnitude of magnetic force the field exerts on the proton?
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