Along, straight solenoid has 800 turns. when the current in the solenoid is 2.90 a, the average flux through each turn of the solenoid is 3.25 * 10-3 wb. what must be the magnitude of the rate of change of the current in order for the self-induced emf to equal 6.20 mv?

It has to be the right answer for it to be correct

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.

He sandals were out in the sun so the got hotter. which is why her feet felt hot.