Question

the unit of reactance is

Answer 1

The unit of reactance is ohm.
Hope this will help you..

Answer 2

Answer: Unit of reactance is ohms (Ω).

Explanation:

Reactance, symbolized by the letter X, is the measurement of how much inductance and capacitance resist current in an AC circuit. The electrical resistance is measured in ohms and fluctuates with the frequency of electrical impulses.

Reactance is of two types:

1. Capacitive reactance ( Xc ), and
2. Inductive reactance ( XL).

Reactance Formula

The total reactance (X) is equal to the difference between the two:

Total reactance, X = XL– Xc

a. Capacitive Reactance Xc

The reactance is referred to as capacitive reactance because it is large at low frequencies and modest at high frequencies ( Xc ). At zero frequency (f=0Hz), steady DC has an infinite Xc. This indicates that while blocking DC, the capacitor transmits AC.

Capacitive Reactance, Xc = 1/2fC

Where,

Xc = reactance in ohms (Ω)

f = frequency in hertz (Hz)

C = capacitance in farads (F)

b. Inductive Reactance, XL

Inductive reactance is the reaction that has a modest low-frequency value and a big high-frequency value. At zero frequency (f=0Hz), stable DC has XL equal to zero. This indicates that the inductor allows AC to flow but not DC.

The following is the formula for figuring out a coil's inductive reactance:

Inductive reactance, or XL, is calculated by multiplying the frequency of the ac current (in hertz), which is equal to 2 pi, or 6.28, by the coil's inductance (in henries).

XL = 2x f x L

L = the inductance value of coil in henries.

Inductive reactance, XL = 2fL

Where,

XL = reactance in ohms (Ω)

f    = frequency in hertz (Hz)

L   = inductance in henry (H)

Hence in both the cases the unit of reactance is ohms (Ω).

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