Length of a coiled wire question.?

Question

What is the length of a coiled wire in a circle if the wire itself has a width of A, total diameter D, and N revolutions?

The wire starts at the origin of the circle and directly rotates around itself, creating a spiral. In the case I am examining, it is a wire that is .5 inches wide, and has a total diameter of about 100 inches on the outside loop.

A solution for an ellipse would also help.

Thanks.

Answer 1

that is just so you figure how and where all the electrsity is going right,
because unless you put holes in your wirh why would it matter how long it is,
unless you are going to fill it with a battery

Answer 2

U see I worked out to something like this.
The answer is
N squared multiplied by 22/7 multiplied by [D+A(N+1)/2]

Its very difficult to represent squares, pie and multiplication symbols on my key board