cammiecutes2687 cammiecutes2687
  • 13-07-2019
  • Physics
contestada

If the current density in a wire or radius R is given by J-k+5,0F wire? R, what is the current in the wire?

Respuesta :

AbsorbingMan AbsorbingMan
  • 25-07-2019

Answer:

I = [tex]R^{2}[/tex](K+5)

Explanation:

Given :

J = k+5

Now selecting a thin ring in the wire of radius "r" and thickness dr.

Current through the thin ring is

dI = J X 2πrdr

dI = (K+5) x 2πrdr

Now integrating we get

I = [tex]\int_{0}^{R} = (K+5).2\pi rdr[/tex]

I = (K+5) 2π[tex]\int_{0}^{R} rdr[/tex]

I = (K+5) 2π [tex]\frac{R^{2}}{2}[/tex]

I = [tex]R^{2}[/tex](K+5)

Answer Link

Otras preguntas

What industry stimulated the widespread use of steam engines definition?
Lily visits her family doctor. He tells her that the upset stomach she experiences after drinking milk is caused by too little lactase, an enzyme that breaks do
Jared has two dogs, Spot and Rover. Spot weighs 75.25 pounds. Rover weighs 48.8 pounds more than Spot. How much does Rover weigh?
Which two countries controlled key African ports for repairing and supplying ships?
What group showed the strongest support for the 13th amendment?
why is black friday a frustrating experience for some people?Refer to the text in your answer
The court of appeals for the federal circuit is located in
What is a baby's chance of survival if he or she is born at twenty-eight weeks? 25 percent 50 percent 65 percent 90 percent
What would most likely happen to the bear population if the salmon population increased?
Me ___________ mirar la televisión en casa. Question 10 options: 1) gustar 2) gustan 3) gusto 4) gusta