1. The problem statement, all variables and given/known data A needle suspended from a string hangs horizontally. The electrical field at the needle's location is horizontal with magnitude 3.7 x 10^3 N/C and it's at an angle of 30 degrees with the needle. There is no net electrical force acting on the needle, but the string exerts a torque of 3.7 x 10^-4 Nm to hold the needle in equilibrium. What is the needle dipole moment??? 2. Relevant equations t = torque p = dipole moment E = electric field t = p x E 3. The attempt at a solution The way I am trying to solve this seems very easy and I thought I better check before turning this in. we want the dipole moment which is p, therefore p = t / E -->> p = 3.7 x 10^-4 / 3.7 x 10^3 but then I'm thinking, the angle given in the problem statement come in play somewhere right??? Am I in the right track???