Question

What is impedance? Explain capacitive and inductive reactance. Write their equations and units.​

Answer 1

Explanation:

Capacitive reactance (in ohms) decreases with increasing AC frequency. Conversely, inductive reactance (in ohms) increases with increasing AC frequency. Inductors oppose faster changing currents by producing greater voltage drops; capacitors oppose faster changing voltage drops by allowing greater currents.

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Answer 2

Answer:

Reactance is essentially the inertia against the motion of electrons in an electrical circuit i.e. the attribute against the flow of electrons in an electrical circuit .It is denoted by the symbol R and is measured in units of the Greek symbol ohm.In an electrical circuit,it is mathematically the ratio of the potential difference V and the current flows between two points in that circuit.

R=VI

Capacitive reactance-Ohms

Inductive reactance-Ohms

Equations X=XL-XC or X=XC-XL.Thus,if a circuit contains 50 ohms of inductive reactance and 25 ohms of capaitive reactance in series, the net reactance, or X, is 50 ohms-25 ohms, or 25 ohms of inductive reactance.