Question

The electrostatic force between two protons placed at distance r is F. If we keep electrons in place of protons, then what would be the effect on electrostatic force?

Answer 1

Answer:

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Answer 2

Answer:

Explanation:

charge on proton = + 1.6 × 10⁻¹⁹ C

charge on electron = -1.6 × 10⁻¹⁹ C

means magnitude of charge on electron = magnitude of charge on proton

A/C to question,

Electrostatic force between protons = F

use Coulombs law,

F = K( 1.6 × 10⁻¹⁹)(1.6 × 10⁻¹⁹)/r²

F = K(1.6 × 10⁻¹⁹)²/r²

Now, electrostatic force between two electrons when they are separated r distance from each other .

F' = K(-1.6 × 10⁻¹⁹)(-1.6 × 10⁻¹⁹)²/r²

F' = K(1.6 × 10⁻¹⁹)²/r²

Hence, F = F'

So, force act between two electrons are same e.g., F