3 years ago

(a) Define moment of a force (1mk)

Physics

1 answer:

faltersainse [42]3 years ago

3 0

Nf mass 1508 of pivoted freely at the 0cm

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The electrostatic force between two spheres is given by :

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According to given condition, each of the spheres has lost half its initial charge, new force is given by :

$F'=\dfrac{kq_1/2q_2/2}{r^2}$

$F'=\dfrac{1}{4}\times \dfrac{kq_1q_2}{r^2}$

$F'=\dfrac{1}{4}F$

So, the new force becomes (1/4)th of the initial force. Hence, the correct option is (d).

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