Original post by Acrux
Calculate the resistance of a uniform wire of diameter 0.32mm and length 5.0m the resistivity of the material - 5x10^-7.
p=RA/L
Confused with the prefixes.
p=RA/L
Confused with the prefixes.
The units of resistivity are ohm metres, or ohms * m.
I can't figure out what the prefixes are in that question :s
Original post by Acrux
bump
Perhaps if you explained what your problem is.
You have the formula and the values to plug into it. (Calculate area A from the diameter given)
What answer do you get? Let's see what you've done.
Original post by Stonebridge
Perhaps if you explained what your problem is.
You have the formula and the values to plug into it. (Calculate area A from the diameter given)
What answer do you get? Let's see what you've done.
You have the formula and the values to plug into it. (Calculate area A from the diameter given)
What answer do you get? Let's see what you've done.
worked it out now.
Was using wrong prefix
