The reactance of a circuit is zero. It is possible that the circuit contains.
The reactance of a circuit is given by , where XL = reactance of inductor, XC = reactance of capacitor.
X can be 0 in two cases:
(i) When , that is both inductor and capacitor are present. Hence option (A) is correct. (Ans)
(ii) When both XL and XC = 0, that is, there is neither an inductor nor a capacitor. Hence, option (D) is correct. (Ans)
When either an inductor or a capacitor is present, either XL or XC are non-zero and hence the reactance cannot be 0. Therefore, options (B) and (C) are incorrect.