Taking the resistivity of platinoid as 3.3 x 10-7 m, find the resistance of 7.0 m of platinoid wire of average diameter 0.14 cm.

Explanation:

The resistance of a wire is given by:

where

is the resistivity of the material

L is the length of the wire

A is the cross-sectional area of the wire

For the wire in this problem:

L = 7.0 m

r = d/2 = 0.07 cm = 0.0007 m, so the area is

Solving for R,

28. evolution

29. environment, survive, offspring  

explanation:

what is the question because that is not a question.