Two identical metal spheres, carrying unequal positive charges, are separated by a certain distance. They are brought in contact and again placed at the same separation. What will happen to their charges and the force between them About the author Anna
Correct option is C more than before Before touch the electrostatic force between them is F= r 2 kq 1 q 2 When they are touched, the charge will flow still they have same potential. So the average charge on each sphere is q a = 2 q 1 +q 2 Thus, q a >q 1 and q a >q 2 So, after touch the force between them will be more than before. Reply
Correct option is
C
more than before
Before touch the electrostatic force between them is F=
r
2
kq
1
q
2
When they are touched, the charge will flow still they have same potential. So the average charge on each sphere is q
a
=
2
q
1
+q
2
Thus, q
a
>q
1
and q
a
>q
2
So, after touch the force between them will be more than before.