- #1

freshcoast

- 185

- 1

The current density from the axis in the wire of radius R is given by J = cr

^{3/2}

A) draw the current density as a function of r graph

B) determine the constant c in terms of I

_{total}

C) determine the current as a function of r.

D) draw the graph of the current as a function of r.

2. Known equations

3. Attempt

For part a) I think the graph would just look like a gradually increasing graph, since r grows exponentially.

For part b) I am just confused on this one, I really don't know just how to start this, I don't know which equation to include to give me c in terms of I

Any input is greatly appreciated, thanks!