1.

Point charges 30C, - 20C, and 10C are located at (-1,0,2),(0,0,0) and (1,5,-1) respectively. The total electric flux leaving cube of side 6 m centered at the origin is

Answer»

The Cube is centered at the Origin(0,0,0) so,

You can infer that the CHARGES present INSIDE the Cube are:-
1. 30 C charge (-1,0,2)
2. -20 C charge (0,0,0)

Now, According to Gauss's Law,

Electric Flux = Charged ENCLOSED WITHIN the Surface/ ε₀

=> Flux = (30- 20)/ ε₀
=> Flux = 10/ (8.85 ×10^-12)
=> Flux = 1.12×10^12


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