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two like charges when placed in a medium of dielectric constant of2.5 at adistance of 10 cm repel each other with a force of 1 N.find the force between them when placed5cm apart in air |
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Answer» o like CHARGES when placed in a medium of dielectric constant of 2.5 at a distance of 0.1 m repel each other with a force of 1 N.To Find The force between them when they are placed 0.05 m apart in AIR.Working formulaForce between charge particles placed in air Where, K = and R is the distance between the charged particles.Force between charge particles placed in a dielectric mediumHere, if the distance between the particles is r, we USE the same formula as that of air ,but the new distance is given as is the dielectric constant of the medium.Calculations0.1 m distance in a dielectric medium of constant 2.5 gives a distance m distance in air.Hence,when placed 0.5 m apart , force = 1 N. Thus, we have to find force when they are placed 0.05 m apart.Hence, the force when they are placed in air is 100 N |
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