When air is replaced by a dielectric medium of constant k , the maximum force of attraction between two charges separated by a distance Options: A . &nbspDecreases k times B . &nbspRemains unchanged C . &nbspIncreases k times D . &nbspIncreases k-1 times

Answer: Option A : A F ′ = 1 4 π ϵ 0 q 1 q 2 r 2 = F K If F is the force in air, then F is less than F since K > 1.

When air is replaced by a dielectric medium of constant k , the maximum force of

Question

When air is replaced by a dielectric medium of constant k , the maximum force of attraction between two charges separated by a distance

Options:

A . Decreases k times

B . Remains unchanged

C . Increases k times

D . Increases k-1 times

Answer: Option A
:
A

F^{'} = \frac{1}{4 π ϵ_{0}} \frac{q_{1} q_{2}}{r^{2}} = \frac{F}{K}

If F is the force in air, then F is less than F since

K > 1.

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