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1) A r r B r Two charges, one at the origin, O, with charge - Q, and the other at point B with charge +Q, where Q = 4.0 x 10-

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(a) E B A Eztan ( 31/ Qasini (7/2 Eo OG UB 30°. r No klal EB Fo - (9x109) (4x100) 102 - 360 NIC Nic -312 E na EB osa = E – 18

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