Point charges Q1 and Q2 of +12 nC and -12 nC, respectively, are placed 10.0 cm apart . This combination of two charges with equal magnitude and opposite sign is called an electric dipole. Compute the resultant electric field (magnitude and direction) at:point a, midway between the charges Q1 and Q2. point b, 4.0 cm to the left of Q1.

stands for electromotive force and it is measured in volts. despite its name, it is not actually the force in the sense of being a "pushing" or "pulling" (not measured in newtons).an equation that relates emf,  ℰ,  to a battery's terminal voltage, v, current, i, and internal resistance, r, is    ℰ = v + irin this case, the emf can be interpreted as a voltage—a difference in electric potential.i would not say that it would be considered an energy. if emf can be defined as the energy/work per a unit charge from a battery or other electric source, then it is not strictly energy.

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