Two charrged sphere seprated in air at a distance d exert a force F on each other If they are immersed in a liquid of dielectric constant 2 then what is the force

Dear pallavi

for air K=1

when spehere are placed in air F= 1/4∏ε  q1 *q2 /d²

when sphere are placed in dielectric (k=2)

F1 = 1/4∏εK  q1*q2/d²

      = 1/k [F]

       =F/k

    = F/2

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