Which of the following statements about flux are true?

The unit of flux is Nm2/C
The total flux through a surface completely enclosing a charge q is q/ε
The total flux through a closed surface can be positive or negative, depending on whether the enclosed charge is positive or negative.
The total flux through any closed surface that does not contain a charge is zero.
When turning a surface inside of an electric field, the maximum flux is achieved if the electric field vector and the surface vector are perpendicular.

I said True, True, False, True, True and got it wrong

Question

Which of the following statements about flux are true? 

 The unit of flux is Nm2/C 
 The total flux through a surface completely enclosing a charge q is q/ε 
 The total flux through a closed surface can be positive or negative, depending on whether the enclosed charge is positive or negative. 
 The total flux through any closed surface that does not contain a charge is zero. 
 When turning a surface inside of an electric field, the maximum flux is achieved if the electric field vector and the surface vector are perpendicular. 

I said True, True, False, True, True and got it wrong

anonymous · Answer

It is true, true, true, true, false.
They are pretty self explanatory.

anonymous · Answer

Thanks a bunch!