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Mathematics 13 Online
OpenStudy (anonymous):

The expression 0.01E+0.003E^2 the thickness in millimeters (mm) of the insulation needed for a high voltage cable.E is the number of kilovolts carried by the cable. What thickness of insulation material is needed for 7 kilovolt cable? a)0.091mm b)1.54mm c)0.217mm d)0.847mm

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