Determining the magnitude of the magnetic field
A long, straight wire (radius = 2.5 mm) carries a current of 4.0 A distributed uniformly over a cross section perpendicular to the axis of the wire. What is the magnitude of the magnetic field at a distance of 1.2 mm from the axis of the wire?
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what volume of 0.200M hcl must be added to 250mL of 0.300M sodium mandelate to produce a buffer of solution with a pH of 3.37?
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