The wire in the drawing carries a current of 14 A. Suppose that a second long, straight wire is placed right next to this wire. The current in the second wire is 28 A. Use Ampere’s law to find the magnitude of the magnetic field at a distance of r = 0.67 m from the wires when the currents are (a) in the same direction and (b) in opposite directions.
Conduct an internet search of appropriate Government agencies and occupational hygiene organisations and source sampling methods and exposure standards for each of the stresses. In cases where agencies recommend different methods select one you regard as being most appropriate and motivate why your selection was made. Identify substances that may impact on the same target organ and explain how this may influence the PEL that you will use to evaluate the exposure scenario
March 20, 2015
7:51 am
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