# Negative ampere and graphical convention

1. Since only electron's flow in electricity and electrons have negative charge, then why we don't say —1amps (—1C/s)?

2. Secondly, as conventional way we write down independent variable in $x$ axis and dependent on $y$ axis then $I/V$ ($V$ on $x$ and $I$ on $y$ axis) should not indicate conductance?

3. If conductance is constant then would the resistance also be constant?

• Related: physics.stackexchange.com/q/17109/2451 and links therein. Feb 26 '16 at 6:55
• I edited this post to make it clear that you're asking three questions. However, we really prefer to have one question per post. Can you please select one of these questions to ask here and ask the other two in separate posts? Feb 26 '16 at 7:08