Page 3 - Electrostatics 11 class

Grade 11 © GC Shiba

Contents

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

Electrostatic induction: .................................................................................................................. 6

Action of points: ............................................................................................................................... 8

Coulomb's law of electrostatics: .................................................................................................. 10

Electric field intensity: ................................................................................................................. 12

Electrical potential ........................................................................................................................ 13

Electric potential energy .............................................................................................................. 14

Electric potential difference: ...................................................................................................... 16

Electric intensity at any point on the axis of dipole: ................................................................18

Electric potential gradient: ........................................................................................................ 20

Relation between Electric potential gradient and Electric intensity: ......................................... 20
Equipotential surface: .................................................................................................................. 21

Electron volt ................................................................................................................................... 21

Electric field ................................................................................................................................... 21

Properties of electric lines of force: .................................................................................................... 22
Electric flux: ................................................................................................................................... 24

Gauss Theorem: ............................................................................................................................. 24

Applications of Gauss Theorem: ................................................................................................. 25

1) Electric intensity inside ..................................................................................................................26
2) Electric intensity outside ................................................................................................................26

3) Electric intensity on the surface ................................................................................................... 27
4) Electric intensity due to linear distribution of charge .............................................................. 28

Electric intensity due to charged plane sheet ....................................................................................29
Electric intensity due to charged plane conductor .......................................................................... 30

Electrostatic shielding ....................................................................................................................... 30
Zero potential: ..................................................................................................................................... 30

Short Questions ( 2 Marks) ........................................................................................................ 31

Long Answer Questions (4 Marks) ........................................................................................... 32

Numerical Problems (3 Marks) ................................................................................................. 33

3 Electrostatics