Are ohms AC or DC?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Ohms (Ω) measure electrical resistance and apply to both AC (alternating current) and DC (direct current) circuits. Resistance is a fundamental property of materials that opposes the flow of electric current regardless of whether that current is alternating or direct. However, in AC circuits, you may also encounter "impedance" (measured in ohms as well), which includes both resistance and reactance from capacitors and inductors. For simple resistive components like standard resistors, the ohm value remains the same for both AC and DC.
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