Please enable JavaScript.
Coggle requires JavaScript to display documents.
ELECTROSTATICS (CONDUCTORS IN ELECTROSTATIC EQUILIBRIUM (Charges reside on…
ELECTROSTATICS
CONDUCTORS IN ELECTROSTATIC EQUILIBRIUM
Charges reside on surface of conductor
Electric field on surface of conductor is perpendicular to surface
No Electric Field Inside a conductor
Excess charge on conductor is more concentrated at regions with high curvature
COULOUMB'S LAW
Same sign charge ( Repel )
Different sign charge ( Attract )
F = Kqq / r^2 where K = 8.99 x 10^-12
CHARGING & DISCHARGING
Induction
Grounding
Conduction & Contact
Electric Field Line
Number of line penetrating is perpendicular to line of strength of electric field
Electric Field due to a Distribution of Charge
Linear Charge Density ,
Surface Charge Density
Volume Charge Density
Electric Potential
V = Kq / r
For CIRCLE & SEMICIRCLE
For RING
For DISK
Vector Superposition of Electric Force
F = F1 + F2 + F3 +...
Vector Addition
C = A+ B
Electric Dipole
Dipole Moment = Qd
where Q = charge & d = distance
Electric Flux & Gauss' Law
Electric Flux is proportional to the net charge enclosed
Electric Field
E = F/Q or E = KQ / r^2
For STRAIGHT ROD
For INFINITELY LONG STRAIGHT ROD
For STRAIGHT ROD
Electri Potential Energy
U = Kqq / r
LUA YU HUI
ELECTRICITY & MAGNETISM
A19SC0158
990304015742
