Question

Two charges, q_{1} and q_{2}, are located a
distance d apart and the each charge exerts on the other is F.
Charge q_{1} is doubled and charge q_{2} is doubled
and the separation between the charges is increased to 4d. The new
force each charge exerts on the other is _______.

a) 8F |
||

b) 2F |
||

c) F/8 |
||

d) 4F |
||

e) F/4 |
||

f) F/2 |

Answer #1

= charge

= charge

d= distance between two charge

F is force acting on each charge.

we know

...........................................(1)

then according to question , charge and distance all change

And new charge

New distance

the new Force is

The new force each charge exerts on the other is =

Option (e) is correct answer

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