4.0 cm, subtending an angle of 90° about the center of the full circle; 3. an electric dipole with a dipole moment that is perpendicular to a radial line and has a magnitude of 1.28 10−21 C·m. What is the net electric potential at the center? 24.35. The electric potential at points in an xy plane is given by V = (2.0 V/m2)x2 − (3.0 V/m2 ...
A charge of -3.00 m C is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.100 m). The charges on the circle are -4.00 m C at the position due north and +5.00 m C at the position due east.