A multimeter displaying 'OL' (overload) when measuring resistance across a component means:
- AThe component has zero resistance (a perfect conductor)
- BThe resistance is within the normal operating range
- CThe circuit is open — resistance is effectively infinite
- DThe multimeter battery is low and needs replacement
Correct Answer
The circuit is open — resistance is effectively infinite
Explanation
OL (or '1.' on some meters) indicates the resistance exceeds the meter's range — an open circuit. This would indicate a blown fuse, open winding, or broken connection depending on what is being tested.