1. a) Given a scalar field V = 2xy - yz + xz ; find the vector representing the direction and the magnitude of the maximum rate of increase of V at point P (2, - 1,0). b) Derive the wave equation of Magnetic field using differential form of Maxwell's 4th Equation (where the displacement current takes place). c) ) Explain the physical meaning of E=- V with proper figures.

1. a) Given a scalar field V = 2xy - yz + xz ; find the vector representing the direction and the magnitude of the maximum rate of increase of V at point P (2, - 1,0). b) Derive the wave equation of Magnetic field using differential form of Maxwell's 4th Equation (where the displacement current takes place). c) ) Explain the physical meaning of E=- V with proper figures.