Answer to Question #311975 in Electric Circuits for Stary

Question #311975

An aluminum wire with a diameter of 1.02 mm and volume of 1.57x10-5 m3, has a battery attached to it with an emf of 30 volts. Find (a) the resistance of the wire and (b) the corresponding current.





1
Expert's answer
2022-03-15T10:34:05-0400

(a) the resistance of the wire

"R=\\rho\\frac{l}{A}=\\rho\\frac{V}{A^2}\\\\\n=2.65*10^{-8}*\\frac{1.57*10^{-5}}{(3.14*(1.02*10^{-3})^2\/4)^2}\\\\\n=0.624\\:\\Omega"

(b) the corresponding current

"I=\\frac{V}{R}=\\frac{30}{0.624}=48.1\\:\\rm A"


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS