Question

A nichrome wire is 4.5 m long and 0.50 mm in diameter. What is its resistance?

Answer 1

R = k L / A
where k is resistivity, ohm-m (look it up),
L is length, m
A is cross-sectional area, m^2.

Answer 2

i keep on getting 0.0022 and 0.0099 and i know both of these answers are wrong, please help :/

Answer 3

@douglaswinslowcooper

Answer 4

What resistivity are you using?

Answer 5

Are your units ohm-m, m, and m^2?

Answer 6

unit is in ohms

Answer 7

@douglaswinslowcooper