add the charges. then the algebratic sum is the effective charge.
Net effective Flux is
FLux= qtotal/epsilon = epsilon*E*area
The following charges are located inside a metallic container on unknown shape: 5.00 μC, -4.60 μC, 67.0 μC, and -50.0 μC. Calculate the net electric flux, in Nm2/C, through the container
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