Question icon
Grade 12Electrostatics

There exists a uniform electric field E=4×10^5 V/m directed along negative x axis such that the electric potential at origin is 0.A charge of 200micro placed at origin and a charge of 200micro placed at 3m,0.The electrostatic potential energy of system is

Profile image of Chinmoyee Maji
7 Years agoGrade 12
Answers icon

1 Answer

Profile image of Arun
7 Years ago
Dear student
 

Dipole moment of the two charges is

 

p = q × l

p = 200×10^-4 × 3

p = 1.2×10^-3

 

P.E. = pEcos∅

P.E. = 1.2×10^-3 × 4×10^5 [ cos∅ = 0°]

P.E. = 4.8×10^2 J