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2 point charges of 20C and80C are placed 18cm apart.Findd the position of the point where E^ is 0
E would be zero b/w both the chrges as both are psotive and would exhibits the repelling forces.Hence, let at x distance the Electric field would be due to both =>E net = E1 + E2 = 020k/x^2 = 80k/(18 -x)^218 – x = 2x3x = 18x = 6 cm.Hence at 6 cm from 20 C charge ot would be zero.
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