two point charge repal each other with a force F when placed in water of dielectric constant 81.what will the force between them when placed the same distance apart in air
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Explanation:
when charges are placed in a dielectric medium then force decrease coz force is inversely proportional to K( dielectric constant). Hence here when charges are placed in air then it becomes K times means 80 times to the previous force acting between the particles
See the attachment
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