What is the effect of increasing resistance in a circuit?

Increasing resistance in a circuit leads to a limitation of the current flow. This relationship is governed by Ohm's Law, which states that the current (I) flowing through a circuit is directly proportional to the voltage (V) across it and inversely proportional to the resistance (R). The formula is expressed as I = V/R.

When resistance is increased while maintaining a constant voltage, the current must decrease, since the higher resistance creates more opposition to the flow of electrons. Thus, the overall effect of increasing resistance is that it restricts the amount of current that can flow through the circuit, demonstrating why the statement about limiting current flow is accurate.

In contrast, increasing resistance does not cause an increase in current flow, decrease voltage, or have no effect on the current, as those scenarios contradict the fundamental principles governing electrical circuits.