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Power and Resistance

A wire 1.2 m long and 0.4 mm diameter has a resistance of 4.9. Calculate the resistance of another wire of the same material whose length is 0.8 m and diameter is 0.24 mm.

Solution Preview

Recall:

R = pL/A

where resistivity, p, is constant since it ...

Solution Summary

This solution is provided in 54 words. It provides an equation for resistance to find resisitivity and then resistance of the second wire.

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