Page 3 - Electrostatics 11

Grade 11 © GC Shiba
Contents

Electricity: ........................................................................................................................................................ 4

Electrostatic induction: ................................................................................................................................... 5

Action of points: ................................................................................................................................................ 6

Coulomb's law of electrostatics: ..................................................................................................................... 7

Electric field intensity: ..................................................................................................................................... 9

Electrical potential ......................................................................................................................................... 10

Electric potential energy................................................................................................................................ 11

Electric potential difference: ......................................................................................................................... 13
Electric intensity at any point on the axis of dipole: ................................................................................... 15

Electric potential gradient: ........................................................................................................................... 17

Relation between Electric potential gradient and Electric intensity: ................................................................... 17
Equipotential surface: .................................................................................................................................... 18

Electron volt ................................................................................................................................................... 18

Electric field .................................................................................................................................................... 18

.................................................................................................................................................................................... 19
Properties of electric lines of force: ......................................................................................................................... 19

Electric flux: ................................................................................................................................................... 21

Gauss Theorem: ............................................................................................................................................. 21

Applications of Gauss Theorem: .................................................................................................................. 22
1) Electric intensity inside ..................................................................................................................................... 23
2) Electric intensity outside .................................................................................................................................. 23

3) Electric intensity on the surface ....................................................................................................................... 24
4) Electric intensity due to linear distribution of charge ................................................................................... 25

Electric intensity due to charged plane sheet ......................................................................................................... 26
Electric intensity due to charged plane conductor ................................................................................................. 27
Electrostatic shielding ........................................................................................................................................... 27
Zero potential: ....................................................................................................................................................... 27

Short Questions ( 2 Marks) .................................................................................................................. 28

Long Answer Questions (4 Marks) .................................................................................................... 29

Numerical Problems (3 Marks) .......................................................................................................... 30

3 Electrostatics