To increase the electric force between two charged particles by a factor of 16, we D. Increase one particle's charge by a factor of 16.
Electric force is the force of attraction between two charged particles.
The magnitude of the electric force is given by F = kq₁q₂/r² where
Given that we have two charged particles q₁ and q₂ separated by a distance r, the electric force betwen them is given by F = kq₁q₂/r²
Now, if we want to increase the force by a factor 16, we have the new force F' = 16F
F' = 16kq₁q₂/r²
F' = k16q₁q₂/r²
F = k(16q₁)q₂/r² or kq₁(16q₂)/r²
This implies that either one of the charged particles q₁ or q₂ is increased by a factor of 16
So, to increase the electric force between two charged particles by a factor of 16, we D. Increase one particle's charge by a factor of 16.
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