Final answer:
In a parallel circuit, removing a resistance does not always decrease the total resistance. When resistors are connected in parallel, the total resistance decreases because there are multiple paths for the current to flow through.
Step-by-step explanation:
In a parallel circuit, removing a resistance does not always decrease the total resistance of the circuit. When resistors are connected in parallel, the total resistance decreases because there are multiple paths for the current to flow through, which reduces the overall resistance. However, when one of the resistors is removed, the remaining resistors still provide multiple paths for the current, leading to an increase in the total resistance of the circuit.