Question

The force between two charges in vacuum is 0.1N. What is the force it
vacuum is replaced by a medium of permittivity 10 times greater than th of vacuum? a) 0.1N b) 0.01N c) 0.001N d) 0.0001N

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Answer 1

Answer:

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replaced by medium whose permittivity is. 10 times greater than that of vacuum

Answer 2

Given: The force between two charges in vacuum is 0.1N.

To find: Force if vacuum is replaced by a medium of permittivity 10 times greater than that of vacuum

Explanation: The force between two charges of vacuum is 0.1 N.

When vacuum is replaced by a medium of permittivity 10 times greater than vacuum, the relative permittivity increases by a factor of 10.

As a result, the magnitude of force decreases by a factor of 10 since force is indirectly proportional to the permittivity.

Therefore, force = 0.1 / 10

= 0.01 N

Therefore, the force if vacuum is replaced with a medium of permittivity 10 times greater than that of vacuum is option (b) 0.01 N.