If the electric flux entering and leaving an enclosed surface respectively is ${\phi _1}$ and ${\phi _2}$ the electric charge inside the surface will be
If the electric flux entering and leaving an enclosed surface respectively is ${\phi _1}$ and ${\phi _2}$ the electric charge inside the surface will be
- A
$\left( {{\phi _2} - {\phi _1}} \right){\varepsilon _0}$
- B
$\frac{{\left( {{\phi _1} + {\phi _2}} \right)}}{{{\varepsilon _0}}}$
- C
$\frac{{\left( {{\phi _2} - {\phi _1}} \right)}}{{{\varepsilon _0}}}$
- D
$\left( {{\phi _1} + {\phi _2}} \right){\varepsilon _0}$
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