Question

1. a) For the system of three charges shown in figure la, where Q1- -6.4x10-19 C, Q2- 4.8x101 C and Q3--3.2x1019 C, and a-1 nm and b-2 nm. i. Calculate the magnitude and direction of the force exerted on Q2 by Q1 and 4 Q3. ii. Copy figure la into your answer booklet and sketch the electric field in the region around the three charges. ii. Calculate the work required to place an addition negative charge Q4 (where 04 -6.4x1019 C) a distance of 0.5 nm away from Q3 (see figure la(ii).
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Answer #1

SoLUTIONS:- -19 4.8x10 3 2x 1619C a 1nm 21 13 au 1 X10 = 138.24 X 10x2 N 276.48 ΧΙΟΊ N &203 2 234 4xED 38 3x 10 X 4.8X3.2 x123 iu) om uingine4cat a 84 charge 64X109 c at a 0.5nm aad -19 0.5 x 109 -19 W ะ 368.64 X1020 Toula.

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