Potential energy= mass x gravitational field x height
Arrhenius' equation relates the dependence of rate constant of a chemical reaction to the temperature. The equation below is the Arrhenius equation

where k is the rate constant, T is the absolute temperature. As the temperature of the system increases, the rate constant also increases and vice versa.
I think the answer is letter B
As we know that in transformers we have

here we know that



now from above equation we will have


