What does decreasing total resistance in a parallel circuit imply about individual branch currents?

In a parallel circuit, decreasing the total resistance means that the circuit is allowing more current to flow overall. According to Ohm’s Law and the principles of parallel circuits, the total current supplied by the voltage source is divided among all the branches. When the total resistance decreases, the overall current increases, and the current distribution among the branches depends on the individual resistances of those branches.

When some branches have lower resistance than others, they will indeed carry more current than the branches with higher resistance. This is because the current through each branch is inversely proportional to the resistance of that branch: lower resistance results in higher current according to the formula ( I = \frac{V}{R} ).

In a practical scenario, if one branch has significantly lower resistance than the rest, it will draw a larger share of the current. This leads to variations in the current flowing through each branch, hence the implication that some branches will carry more current than others when total resistance decreases.

Other options do not correctly reflect the behavior of currents in a parallel circuit, specifically that individual branch currents are not necessarily constant or equal due to differences in branch resistances.