(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a perfect dipole (p) is situated a distance z above an infinite grounded plane. The dipole is at an angle theta with the perpendicular to the plane. find the torque on p.

if you have griffiths text, its problem 4.6

2. Relevant equations

E(dipole)= (p/4pi*epsilon.*r^3)*(2cos(theta) r^ +sin(theta) theta^), ^refers to unit vector

torque = PxE

3. The attempt at a solution

Well i cant seem to figure out how to find E.

The above equation for E doesnt take into consideration the grounded plate, so i thought maybe i need to solve for the potential first. But the potential on the plate would be zero since it is grounded, so I dont really know what to do with that.

Im not really sure how to approach this honestly, a nudge in the right direction would be appreciated.

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# Homework Help: Finding torque on a dipole

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