Electromagnetic Field Theory
A potential field is given by V = 3x2 y – yz. The electric field at P(2, -1, 4) is

 12 Ix + 8 Iy + Iz V/m.
 12 Ix - Iz V/m.
 12 Ix - 8 Iy V/m.
 12 Ix - 8 Iy - Iz V/m.

ANSWER DOWNLOAD EXAMIANS APP

Electromagnetic Field Theory
According to Coulomb’s law, the force of attraction or repulsion, between to electrical charges is

 directly proportional to the square of the distance between them.
 inversely proportional to the square of the distance between them.
 inversely proportional to the distance between them.
 directly proportional to the distance between them.

ANSWER DOWNLOAD EXAMIANS APP