(b) It is given that \(\vec{D} = xya_x + yza_y + zx a_z\) C/m². Find the charge density at (1, 2, 3).
[5]
Q4. Two charges 30 nC and -30 nC/m are located at (10, 0, 0) and on z-axis, respectively. What will be the electric field intensity at (0, 10, 0) and (10, 0, 10)?
[10]