# Chapter 27 - Gauss's Law - Exercises and Problems - Page 805: 5

No charge insside the box

#### Work Step by Step

Inside the electric filed: $$E_i=5+20+15=40N/C$$ Outside the electric field: $$E_o=10+20+10=40N/C$$ Thus, $$E_i=E_o$$ Hence, there is no charge inside the box .

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