If a digital multimeter is set up as shown in figure "A" of the illustration to test an AC contactor coil, what would the display read if the coil is open-circuited? EL-0214

Question

If a digital multimeter is set up as shown in figure "A" of the illustration to test an AC contactor coil, what would the display read if the coil is open-circuited?  EL-0214

Accepted Answer

Option A: OL ohms. Digital multimeters set to the resistance (ohms) function display 'OL' (Open Loop or Over Limit) when the circuit path is broken. An open-circuited contactor coil provides infinite resistance, preventing current flow, which the meter registers as an open circuit condition rather than a measurable ohmic value.