an incandescent lightbulb has a power of 60 w and an efficiency of 1.7%. A CFL bulb has a power of 18 W and an efficiency of 8.5% how much energy is used when the incandescent bulb is left on for 12 hour?

Idon't know it i just need my points lol

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.

The answer is trial 3.