Ohm's Law

The current passing through a conductor is directly proportional to the volt drop and inversely proportional to the conductor's resistance.

so that:

$\backslash [$

$\backslash$mathrm$\{$I$\}=\backslash$frac$\{\backslash$mathrm$\{$V$\}\}\{\backslash$mathrm$\{$R$\}\}(1)$

$\backslash ]$

The relationship helps engineers calculate any of the three variables when the other two are known.

From this, if you fix the current in your resistance $($make it constant$),$ and your resistance changes, the voltage across the resistance is directly proportional to the resistance.

Also, if you can fix the voltage across your resistance $($make it constant$),$ and your resistance changes, the current through the resistance is inversely proportional to the resistance.