Equation (24.2) shows that the capacitance of a parallel-plate capacitor becomes larger...

Equation (24.2) shows that the capacitance of a parallel-plate capacitor becomes larger as the plate separation d decreases. However, there is a practical limit to how small d can be made, which places limits on how large C can be. Explain what sets the limit on d. (Hint: What happens to the magnitude of the electric field as )