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

Two similar spheres having +q and -q charge are kept at a certain distance. F force acts between the two. If in the middle of two spheres, another similar sphere having +q charge is kept, then it experiences a force whose magnitude and direction are

A
Zero having no direction
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
8F towards +q charge
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
8F towards -q charge
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
4F towards +q charge
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 8F towards -q charge

Initially, force betwen A and C F=KQ2r2


When a similar sphere B having charge +Q is kept at the mid point of line joining A and
C, then Net force on B is

Fnet=FA+FC=KQ2(r2)+KQ2(r2)2=8KQ2r2=8F.

(Direction is shown in figure)


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Coulomb's Law - Grown-up Version
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon