6. A thin charged ring of radius r = 0.04 m carries a uniform charge density λ = 26.55 nC/m, placed inside a cubic surface of side length L = 1.5 m. Find the net flux (in Nm²/C) through the cubic surface. a) 377.0 b) 565.5 c) 754.0 d) 942.5 e) 1131
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