Physics
Physics
Problem
Which of the following correctly gives the work needed to move a charge through a potential difference ? a) b) c) d)Intuitive explanation
The key insight is that work and electric potential are intimately connected: potential difference literally measures the work per unit charge. When you move a charge through a potential difference, you're either doing work against the field or the field does work for you—the amount depends on both how much charge you're moving and how large the potential difference is. This is a direct application of the definition of voltage.
Intuitive explanation
The key insight is that work and electric potential are intimately connected: potential difference literally measures the work per unit charge. When you move a charge through a potential difference, you're either doing work against the field or the field does work for you—the amount depends on both how much charge you're moving and how large the potential difference is. This is a direct application of the definition of voltage.