Two particles, each of mass m and carrying charges Q, are separated by some distance. If they are in equilibrium under mutual gravitational and electrostatic forces then Q/m (in C/kg) is of the order of
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Explanation:
: Gravitational force = Electrostatics force
Let the distance between the rwo charges be r.
⇒r2G(m)m=r2K Q .Q
⇒KG=m2Q2
⇒9×1096.67×10−11=mQ
∴mQ is the order of 10−10
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