Answer: in an electric circuit
Current = voltage/resistance
Explanation: The terminal voltage V in an electric circuit due to a current I flowing through a resistor R
Is given by
V = I*R
Making current I subject of formula
I= V/R
The law behind this formula V=I*R is the Ohms law. Which states that the current I passing through a mettalic conductor is proportional to the voltage V.
Note that Any two out of these parameters V,I and R can be varies at a time to achieve a desired goal.