What is an indicator of poor electrical connections in a circuit?

Frequent fluctuations in ammeter readings are indicative of poor electrical connections in a circuit. When electrical connections are not secure, it can result in intermittent contact which causes erratic current flow. This inconsistency alters the readings on the ammeter as it measures the current passing through the circuit. Stable connections typically yield a consistent and steady reading on electrical gauges, while fluctuations signal that there is disruption, possibly due to corrosion, looseness, or damage at the connection points.

In contrast, efficient system operation, circuit stability, and the absence of significant heat are signs of healthy, well-maintained electrical circuits. However, fluctuations in ammeter readings directly point towards issues with connectivity that require attention.