a non conducting radius 2.5 cm carries a total charge Q . (a)calculate the total charge Q if electric field at the centre is 3.0×10^6 N/c. (b) calculate the number of atom at surface of the disc assuming that each atom has an effective cross-sectional area of 15×10^-2m^2
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a non conducting radius 2.5 cm carries a total charge Q . (a)calculate the total charge Q if electri...
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