Question
A copper wire that has a cross-sectional diameter of 3.000 mm has a current of 1.141 A.
(a) What is the current density?
(b) What is the total charge that passes by a certain location along the wire in 1.500 s?
(a) What is the current density?
(b) What is the total charge that passes by a certain location along the wire in 1.500 s?
Answers
oobleck
(a) 1.141A / (π * 1.5^2)mm^2 = ______ A/mm^2
(b) since 1A = 1coulomb/s, you will have q = 1.141 * 1.500 * 6.2415*10^18
(b) since 1A = 1coulomb/s, you will have q = 1.141 * 1.500 * 6.2415*10^18