The field D = (4 x 2
e
x
y
2
)ax + (6e
y
x
2
/y2
)ay – (2x2
y
2
z)az C/m2

exists at the centre of (16) (CLO-2)

a cube defined by -4.4
a) Find the total flux leaving the closed surface of the cube by applying Gauss’s law
b) Find expression for the divergence of D at the center of the cube, and at P (-2, -4, 3)
c) Determine the total charge (Q) enclosed within the cube
d) Find the volume charge density if D = 1/x (2xyz ax + 4x2

z ay + (3z2
– 5x2
y) az)