According to Ohm's Law, what happens when voltage is constant and impedance decreases?

When voltage is held constant and impedance decreases, Ohm's Law indicates that the current will increase. Ohm's Law is commonly expressed as ( I = \frac{V}{R} ), where ( I ) is the current, ( V ) is the voltage, and ( R ) is the resistance (or impedance in this context).

When the voltage ( V ) is constant and the impedance ( R ) decreases, the denominator of the fraction becomes smaller. Since the current ( I ) is inversely proportional to the impedance, a decrease in impedance means that the current must increase to maintain the same voltage level.

This relationship reflects the fundamental nature of electric circuits and helps in understanding how changes in resistance/impedance affect current flow, which is critical in applications such as pacing systems where ensuring proper current flow is vital for device functionality.