Question

Electrostatic force between two point and median er=6 is 3n

Answer 1

Answer:

Explanation:

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As we know from Coulombs law,

F = kq₁q₂/r² -----(1)

Here,, k = 1/4πε₀

ε₀ is permittivity of vaccum.

For a medium , permittivity = εr

∴ force = 1/4πε₀εr × kq₁q₂/r²

From equation (1),

Force = F/εr

Given, force = 0.3 N

0.3 = F/6 ⇒ F = 0.3 × 6 = 1.8 N