Question

If current density inside a conductor is j = (2i = k)
A/m2 and the area through which the current flows is
Ā = (4ỉ +2j)m?, then current through the area is
10 A
2A
8 A
4 A​

Answer 1

I = J*A

I = (2i+k)•(4i+2j)

I = 8+2

I = 10A