Physics · JEE | Electrostatic Potential and Capacitance

The magnitude of the electric field \( |E| \) in terms of potential change \( \delta V \) and perpendicular distance \( \delta l \) across closely spaced equipotential surfaces is given by:

1. A
   \( |E| = -\frac{\delta V}{\delta l} \)
2. B
   \( |E| = \frac{\delta l}{\delta V} \)
3. C
   \( |E| = \delta V \cdot \delta l \)
4. D
   \( |E| = \left|\frac{\delta V}{\delta l}\right| \)