Regarding circuits, who is correct: Technician A says a short circuit to ground will decrease resistance, while Technician B says it will increase current flow?

A short circuit to ground occurs when a low-resistance path is created, allowing current to bypass the intended circuit load. In this scenario, resistance in that specific path decreases significantly, which supports the claim made by Technician A. When a circuit experiences a short to ground, the overall resistance drops due to this new path, resulting in increased current flow according to Ohm's Law, where current (I) is equal to voltage (V) divided by resistance (R). Therefore, when resistance decreases, and if the voltage remains constant, the current flow will naturally increase.

Technician B's statement that a short circuit will increase current flow also holds true under these circumstances. With the decreased resistance, the circuit permits a much higher current than it would normally allow, leading to the potential for overheating or damage to the components involved.

Thus, both technicians provide accurate insights about the effects of a short circuit to ground, which is why the correct answer reflects that both A and B are correct. Understanding these fundamental principles is crucial for diagnosing and managing electrical systems effectively.