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November 28, 2014

Homework Help: physics, university

Posted by Emma on Monday, November 19, 2012 at 2:33pm.

A 50.0-g sample of a conducting material is all that is available. The
resistivity of the material is measured to be 11 x 10-8 ohms/m and the density is 7.86 g/cm3. The
material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 ohms.
a) What length of wire is required?
b) What must be the diameter of the wire?

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