Two charged spheres of equal mass are suspended with insulating threads of equal length.
Which of the following shows the arrangement of these spheres when they are in equilibrium?
A
B
C
D
The only correct answer is C
A is not correct as this would suggest zero force acting on the sphere with +Q charge but a
larger force on the other sphere, therefore not equal and opposite.
B is not correct as this suggests a greater force acting on the 10Q sphere, therefore not equal
and opposite.
D is not correct as this suggests a lesser force acting on the 10Q sphere, therefore not equal and
opposite
