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[" 8.Two small conducting spheres of equ...

[" 8.Two small conducting spheres of equal radius have charges "],[+10 mu C" and "-20 mu C" respectively and placed at a distance "r],[" from each other experience force "F_(1)" .If they are brought in "],[" contact and separated to the same distance,they experience "],[" force "F_(2)" .The ratio of "F_(1)" to "F_(2)" is "]

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