Final answer:
To eliminate AC interference, turn off other equipment to see if the problem persists, then turn them back on one by one, or use AC filters or surge protectors that employ large inductance to filter high-frequency noise.
Step-by-step explanation:
To eliminate other electrical equipment in the room as a source of AC interference, a methodical approach should be used. Firstly, turn off all other devices that could possibly be causing interference to see if the problem persists. If the interference stops, turn on each device one by one to identify the culprit. Alternatively, specialized AC filters or surge protectors can be implemented. These devices may use a large inductance or capacitance to filter out high-frequency noise. Specifically, a large inductance would be effective as it imparts greater impedance to higher frequencies, thus attenuating the noise while allowing the desired 60 Hz current to pass through with lesser resistance.