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Question 3
Given that the electric field in a certain region is
E = (z + 1) sin o a, + (z + 1) p cos o as + p sin o a. V/m
determine the work done in moving a 4 nC charge from
(a) A(1, 0, 0) to B(4, 0, 0)
(b) B(4, 0, 0) to C(4, 30°, 0)
(c) C(4, 30°, 0) to D(4, 30°, - 2)
(d) A to D

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