Question

derive an expression for electric static potential due to electric dipole from 12th 3mark ​

Answer 1

Answer:

Electrostatic potential at a point due to an electric dipole: Consider two equal and opposite charges separated by a small distance 2a. ... Let 0 be the angle between the line OP and dipole axis AB. Let r1 be the distance of point P from +q and r1 be the distance of point P from -q.

Answer 2

Answer:

Consider an electric dipole of dipole moment →P = q(2→a ) placed at an angle 0 in the direction of uniform electric field →E . This torque tends to rotate the dipole in the direction of the electric field.The relationship between potential and field (E) is a differential: electric field is the gradient of potential (V) in the x direction. This can be represented as: Ex=−dVdx E x = − dV dx . Thus, as the test charge is moved in the x direction, the rate of the its change in potential is the value of the electric field.