🔒
Boundary Conditions for E and D
Inside this lesson
- State and justify the continuity of D-normal at a charge-free dielectric interface
- State and justify the continuity of E-tangential at any electrostatic interface
- Derive the relation ε_r1·E1n = ε_r2·E2n from D-continuity
- Predict whether E bends toward or away from the normal when entering a higher-permittivity medium
Unlock the full Electromagnetics & Signals course
- Every paid lesson in this course — one purchase.
- Interactive simulators for field lines, Faraday's law, convolution, and more.
One-time purchase — see options on the next page.
or unlock everything with all-accessNot ready yet? See the free preview lessons across the course.
⚖️
Educational content covering topics typical of a first- and second-year electrical engineering curriculum. Not a substitute for accredited coursework, and not suitable for real antenna, transmission-line, or signal-processing system design without review by a licensed professional engineer.