일반물리학 2 — Electric Potential: Problem 59

59 The electric field in a region of space has the components \( E_y = E_z = 0 \) and \( E_x = (4.00 \text{ N/C})x^2 \). Point A is on the \( y \) axis at \( y = 3.00 \text{ m} \), and point B is on the \( x \) axis at \( x = 4.00 \text{ m} \). What is the potential difference \( V_B - V_A \)?