Question

The total current density is given as 0.5i + j – 1.5k units. Find the curl of the magnetic field intensity.

(a) 0.5i – 0.5j + 0.5k

(b) 0.5i + j -1.5k

(c) i – j + k

(d) i + j – k

I got this question in an interview.

I want to ask this question from Maxwell Law 2 topic in chapter Maxwell Equations of Electromagnetic Theory

Answer 1

Correct answer is (b) 0.5i + j -1.5k

Explanation: By Maxwell second equation, the curl of H is same as the sum of conduction current density and displacement current density. Thus Curl(H) = J = 0.5i + j – 1.5k units.