An electric dipole is placed inside a cube. What will be the nature of electric flux from the cube surface?
A. Coming out of the surface
B. Coming in towards the surface
C. No flux at all
D. Coming out from one half and coming inwards in another half
Answer:C
An electric dipole is placed inside a cube. What will be the nature of electric flux from the cube surface?
A. Coming out of the surface B. Coming in towards the surface C. No flux at all D. Coming out from one half and coming inwards in another half
Explanation: An electric dipole consists of two point charges. The amount of charges is the same but their polarities are different. Therefore the sum of total charges in a dipole is always 0. But flux from a closed surface is related to the total charge inside a surface. As the total charge inside the cube is zero, so there will be no flux coming out or going in towards the surface.