Answer / pavan krishna

reactance is nature of either inductor or capacitor but
impedence is mixed effect of the resistor and either
capacitor or inductor

Answer / md. obaydur rahman

The impedance Z of an alternating current circuit is a
complex number given by Eq. (1).
1. Z = R + jX

2. Z = jL\omega = jX

3. Z = -{j\over C\omega } = jX
The imaginary part X is the reactance. The units of
reactance, like those of impedance, are ohms. Reactance may
be positive or negative. For example, the impedance of an
inductor L at frequency ω is given by Eq. (2), so X is
positive. The impedance of a capacitor C is given by Eq.
(3), so X is negative

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