how would you describe the direction and strength of electric field vector, nature of the electric field sources, and electrostatic potential surfaces given the equipotential lines, and even the potential differences at:
a. a single positive charge
b. an electric dipole
c. at two equal positive charges
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Answer: a. The electric potential, or voltage, is the difference in potential energy per unit charge between two locations in an electric field. ... That's why physicists use a single positive charge as our imaginary charge to test out the electrical potential at any given point.
b .An electric dipole is defined as a couple of opposite charges q and –q separated by a distance d. By default, the direction of electric dipoles in space is always from negative charge -q to positive charge q. The midpoint q and –q is called the center of the dipole.
Explanation: i will think to letter c