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D2.6.
Three infinite uniform sheets of charge are located in free space as follows: 3 nC/m² at z = -4, 6 nC/m2
at z=1, and 8 nC/m? at z = 4. Find E at the point: (a) PA(2,5,–5); (b) Pg(4,2, –3); (c) Pc(-1,-5,2); (d)
Pp(-2,4, 5).
Ans. –56.5a, V/m; 283a, V/m; 961a, V/m; 56.5a, V/m

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