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Question

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dan815 · Answer

yes

dan815 · Answer

cud be square relationship

dan815 · Answer

L/area^2?

dan815 · Answer

length increases resistance as the electrons have to pass thru more length to get to the end, cross sectional gives more flow or space for electrons to move

dan815 · Answer

so it decreases the resistance

kropot72 · Answer

You will find helpful information here: http://www.phys.uri.edu/gerhard/PHY204/tsl136.pdf

kropot72 · Answer

Can you post the values of length and cross-sectional area. BTW the formula at the link is correct.

kropot72 · Answer

You posted that the cross-sectional area is 0.08 cm. However that cannot be correct. Square units must be used for the area. Are you sure that the given value is not the diameter of round wire?

dan815 · Answer

why dont you just post the actual question

dan815 · Answer

convert to meter

dan815 · Answer

what is density of coper wire?

kropot72 · Answer

What value did you use for the resistivity?

dan815 · Answer

the resistivity constant

ganeshie8 · Answer

you should post this in physics group to avoid answering questions like `density of copper wire` etc :P

dan815 · Answer

lol

dan815 · Answer

for cross are did u use pi*r^2?

kropot72 · Answer

The area of the wire must be in square meters. Can you please calculate the area and post it for checking.

ganeshie8 · Answer

i guess you should patiently wait till somebody shows up

ganeshie8 · Answer

Okay i agree :) lets keep going

dan815 · Answer

http://www.wolframalpha.com/input/?i=%281.7*10^-8%290.54%2F%28pi*%280.0004%29^2%29

ganeshie8 · Answer

$$R = \rho  \frac{l}{A}$$

ganeshie8 · Answer

wil try, ask..