One charge is decreased to one-third of its original value,
and a second charge is decreased to one-half of its
original value.
how will the electrical force between the charges compare
with the original force?
o it will increase to six times the original force.
o it will increase to thirty-six times the original force.
it will decrease to one-sixth the original force.
it will decrease to one-thirty-sixth the original force.

It will decrease to one-sixth the original force.

Explanation:

The electrical force is given by :

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

Where

k is the electrostatic constant

r is the distance between charges

One charge is decreased to one-third of its original value,  and a second charge is decreased to one-half of its  original value.

i.e.

and

New force is given by :

So, the new force will decrease to one-sixth the original force. Hence, the correct option is (c).

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