The smiling face of Fig. 24- 49 consists of three items:
Chapter , Problem 30(choose chapter or problem)
The smiling face of Fig. 24- 49 consists of three items: 1. a thin rod of charge '3.0 mC that forms a full circle of radius 6.0 cm; 2. a second thin rod of charge 2.0 mC that forms a circular arc of radius 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?
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