1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

# Five point charges each of value +q are placed on five vertices of a regular hexagon of side ? `a' m. What is the magnitude of force on a point charge of s slue '-q' coulomb placed at the centre of hexagon ?

A
14πϵ0q2a2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
14πϵ0q25a2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
14πϵ05q2a2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
14πϵ03q2a2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

## The correct option is A 14πϵ0q2a2If there were 6 charges at each corner then the net electric field at the centre would be zero since it is a regular hexagon . the electric field due to 5 charges will be equal and opposite to the net electric field due to sixth charge so as to make the net electric field at the centre to be zero . Hence electric field at the centre due to 5 charges is will be equal to electric field at the centre due to sixth charge F = K q2/a2 where K is 1/4π€

Suggest Corrections
0
Join BYJU'S Learning Program
Related Videos
Coulomb's Law - Grown-up Version
PHYSICS
Watch in App
Explore more
Join BYJU'S Learning Program