Question

A copper wire of radius 0.6mm carries a
- Current of 1Ammper. Assuming the current be uniformly distributed over a cross sectional area. find magnitude of current density? ​

Answer 1

Answer:

$\large{\mathsf{Current\:Density, J = 2.77* 10^6 Am^{-2}}}$

Explanation:

Current Density, $\Large{\mathsf{J = {\dfrac{I} {A}}}}$

$\mathsf{J = {\dfrac{1}{(0.6 * 10^{-3})^2}}}$

$\mathsf{J = 2.77* 10^6 Am^{-2}}$