two charges with field lines given find the magnitude of other charge
two plates
three plates
field due to shell
field due to solid sphere (conducting and non conducting)
line of chrge
sheet of charge
surface of a conductor
gauss law symmetry. cube corner, edge , portion etc.
parallel plates two and three
concentric shell , one , two , three
Properties of field lines:
1. Always perpendicular to the conducting surfaces
2. Never form closed loops
3. Drawn to the scale
4. Start from positive charge and terminate on a negative charge
5. Never intersect
6. Imaginary
7. Tangent gives the direction of the field
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