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Page 1: Concept of electric field

Concept of electric field

Charge distribution

Test charge=2nC

F=300nN

Electric field at P =

P

CNnC

nN

q

F/150

2

300

0

E=150N/C

q=-4nC

Force on q =

NCNCqE 99 10600)/(150)(104

600nN

Page 2: Concept of electric field

a

+q

-q

-q

-q

What is electric field at center ?

EA

A B

CD

EB

ED

EC

E

Page 3: Concept of electric field

Electric dipole

Page 4: Concept of electric field

Field lines of two equal charges

Page 5: Concept of electric field

Michael Faraday (1791-1867)

Page 6: Concept of electric field

electric field line video


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