In case of capacitor, the unit of reactance is:
Correct answer: B. Ohm
- A. Farad
- B. Ohm
- C. Newton
- D. All of these
Explanation
The correct option is Ohm. Reactance, specifically capacitive reactance, is measured in ohms for a capacitor. It represents the opposition to the flow of alternating current in a capacitor in an AC circuit.
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About Alternating Current
Alternating current varies periodically, so phase relationships become essential when current passes through a resistor, capacitor or inductor. The chapter distinguishes resistance from capacitive and inductive reactance, explains phase lead and lag, and connects changing electric and magnetic fields with the production and properties of electromagnetic waves.
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