Question

Is there any lower limit to the electric force between two particles placed at a separation of 1 cm?

Answer 1

Answer:

Yes, there's a lower limit to the electric force between two particles placed at a separation of 1 cm, which is equal to the magnitude of force of repulsion between twoelectrons placed at a separation of 1 cm.

Answer 2

Yes, There is Lower Limit to Electric Force

Explanation:

• The separation between two particles is, r = 1 cm = 0.01 m

• The electric force between these particles will be minimum, when the charge on the particles is also minimum and the minimum possible charge on any particle is,  

$q = 1.6 \times 10^{-19}$

• The lower limit of electric force between two particles placed at a separation of 1 cm is given by,

$F = K\frac {qq}{r^2}$

$F = 9 \times 10^9 \frac {(1.6 \times 10^{-19})(1.6 \times 10^{-19})}{(0.01)^2}$

$F = 2.3 \times 10^{-24} N$