Physics

This problem is about work and electric potential energy—when you move charge through a potential difference, you're either doing work on it or it's doing work on you. The key insight is that the work done equals the charge moved times the potential difference: $W = qV$. First, convert the number of electrons to total charge using the elementary charge, then multiply by the voltage to find the energy transferred.

This problem is about work and electric potential energy—when you move charge through a potential difference, you're either doing work on it or it's doing work on you. The key insight is that the work done equals the charge moved times the potential difference: $W = qV$. First, convert the number of electrons to total charge using the elementary charge, then multiply by the voltage to find the energy transferred.