wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A cube of side b has a charge q at each of its vertices. Determine the potential and electric field due to this charge array at the centre of the cube.

Open in App
Solution

Diagonal of the cube face, d=(b2+b2)=b2
Diagonal of cube l=(d2+b2)=b3
Distance between center of cube and vertices, r=l/2=b3/2
Potential, v=8q/4πϵor=4q/3πϵob (8 due to presence of 8 charges at the vertices)
by symmetry of charge electric field, E=0.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Potential Energy of a System of Point Charges
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon