Why Do Electric Field Lines Never Cross?

Why Do Electric Field Lines Never Cross?

Foundational Physics Short Answer: Electric field lines never cross because the electric field at a point has one definite direction, provided the field is nonzero. A field line is drawn so its tangent points in that direction. If two field lines crossed at different...
Where Is Energy Stored in a Capacitor?

Where Is Energy Stored in a Capacitor?

Foundational Physics Short Answer: A capacitor stores energy in the electric field created by separated charges on its plates. Charging the capacitor requires work to move additional charge against the increasing voltage. That work becomes energy associated with the...