What is the effect of increasing resistance on current flow, assuming voltage is constant?

When voltage remains constant and resistance is increased, the effect on current flow can be understood through Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), or I = V/R. According to this relationship, if the voltage does not change and the resistance increases, the total current flowing through the circuit will decrease.

This is due to the fact that greater resistance opposes the flow of electrical current more effectively, causing less current to pass through the circuit for the same applied voltage. Essentially, as resistance goes up, the pathway for current flow becomes more restrictive, leading to a reduced amount of current. This principle is fundamental in understanding circuits and how components interact with each other in the context of electrical systems.