Is Electric Flux Equal to q Coulombs or Determined by Field Lines?

[dE_logics]

A source states "Electric flux = q coulombs"


While another states
"We choose the number of field lines starting from any positively charged object to be Cq and the number of lines ending on any negatively charged object to be C|q|, where C is an arbitrary proportionality constant. Once C is chosen, the number of lines
is fixed."



Now which one is right?

 

[xepma]

The second one is just a more general definition. The number of flux lines just depends on the units chosen for the charge and the proportionality constant.

What matters is that the flux is proportional to the charge.

 

[dE_logics]

Yeah that's what the second source says...so the second source is right.