state gov RPSC 2nd Grade Senior Teacher Mock Test Series 2025 Electromagnetic Theory Electrostatics Poisson's and Laplace's Equation
Which of the following represents Laplace's equation
1
\(\nabla^2 V = \frac {-\rho}{\varepsilon_0}\)
2
\(\frac {dP}{dV} = U_j \bar E. \bar J\)
3
\(\nabla^2E + K^2_0E = 0\)
4
∇2V = 0
5
Question Not Attempted