3volt,0.25,R1,4ohms, R2,2ohms, R3,0.5A, R4,3ohms,0.25volt, calculate the value read by the voltmeter across the R2, Calculate the value of R3, Calculate the total resistance

Is there a picture to go along with this

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.