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[" (a) "1.0V],[" (c) "0.2V],[" 25.Three ...

[" (a) "1.0V],[" (c) "0.2V],[" 25.Three connectric metallic spherical shells of radii "R,],[2R,3R," are given charges "Q_(1),Q_(2),Q_(3)," respectively.It is "],[" found that the surface charge densities on the outer "],[" surfaces of the shells are equal.Then the ratio of the "],[" charges given to the shells,"Q_(1):Q_(2):Q_(3)," is: "],[[" (a) "1:2:3," (b) "1:8:18],[" (c) "1:4:9," (d) "1:8:18],[" (c) "1:4:9," (d) "1:8:18],[" (c) "1:4:9," (d) "1:8:18],[" (c) A ball with charge - "50e" is placed at the centre of a "]]

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