In the figure shown, an electric dipole is placed at a distance x from an infinitely long rod of linear charge density $λ$ . Then magnitude of force acting on dipole is found to be $\frac{N λ qa}{π ε _{0} x ^{2}}$ , then find the value of N.

Question

TestHub · Accepted Answer

F = − d x d u ​ = − d x d ​ ( − P . E ) = p ⋅ d x d E ​ = p d x d ​ ( x 2 kλ ​ ) = x 2 2 k p ​ λ = 2 π ε 0 ​ x 2 p λ ​ = π ε 0 ​ x 2 q λa ​ N = 1

Physics - Electrostatics Question with Solution | TestHub

Doubts & Discussion