Reactance Units

February 09, 2024 Post a Comment

Reactance units

The circuit consists of an inductive reactance XL=50Ω, capacitive reactance XC=50Ω and ohmic resistance R=10Ω. Calculate the impedance of the circuit and also potential difference across L and R.

What is the unit of reactance and impedance?

Solution : SI unit of reactance and impedance of a.c. circuit is same viz. ohm.

What is the reactance formula?

The formula for calculating the inductive reactance of a coil is: inductive reactance, or XL, is the product of 2 times p (pi), or 6.28, the frequency of the ac current, in hertz, and the inductance of the coil, in henries. XL =2p x f x L.

What is the SI unit of inductive reactance?

Inductive Reactance (XL) Definition: Inductive reactance is the opposition offered by the inductor in an AC circuit to the flow of ac current. It is represented by (XL) and measured in ohms (Ω).

What is S.I. unit of XL?

Inductive reactance is denoted as XL. The SI unit is the ohm.

What is unit of XC?

The unit of Capacitive Reactance Xc is Ohm.

What is the SI unit of impedance?

The unit of impedance, like that of resistance, is the ohm.

What is reactance and resistance?

Resistance and reactance are the properties of an electrical circuit that opposes the current. The main difference between reactance and resistance is that resistance measures the opposition to a flow of current, whereas reactance measures the opposition to a change in current.

What is the unit of resistance?

The unit of the electrical resistance, measured with direct current, is the ohm (abbreviated Ω), named after the German physicist and mathematician Georg Simon Ohm (1789-1854). According to ohm's law, the resistance R is the ratio of the voltage U across a conductor and the current I flowing through it: R = U / I.

How do you calculate XC and XL?

This resultant is called REACTANCE; it is represented by the symbol X; and expressed by the equation X = XL − XC or X = XC − X L. Thus, if a circuit contains 50 ohms of inductive reactance and 25 ohms of capacitive reactance in series, the net reactance, or X, is 50 ohms − 25 ohms, or 25 ohms of inductive reactance.

What is reactance in RLC circuit?

The reactance of inductor L = XL = ωL and its impedance Zi = 0 + jωL = 0 + jXL. Thus, the impedance of an inductor is always imaginary, leading the resistor R by 90◦. Curve (a) in Figure 12.7 shows the variation of XL( = ΩL) with the frequency.

What is reactance voltage?

Reactance Voltage: The voltage rise in the short circuit coil due to inductive property of the coil, which opposes the current reversal in it during the commutation period, is called the reactance voltage. We can produce reversing emf in two ways. By brush shifting.

What is unit of conductance?

siemens (S), unit of electrical conductance. In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms (S = amperes per volts); in the case of alternating current (AC), it is the reciprocal of the impedance in ohms.

What is the unit of inductor?

The standard unit of inductance is the henry, abbreviatedH. This is a large unit. More common units are the microhenry, abbreviated µH (1 µH =10-6H) and the millihenry, abbreviated mH (1 mH =10-3 H).

What is the unit of inductance?

The SI unit of inductance is Henry abbreviated as 'H'. It is defined as the measure of electric current changes at one ampere per second, resulting in an electromotive force of one volt across the inductor. Henry is a derived unit based on some 7 base SI units like metre (m), second (s), kilogram (kg), and ampere (A).

What is XC in AC circuit?

Capacitive reactance is the property of a capacitor which opposes the flow of current in AC circuits. It is represented with symbol Xc and measured in Ohms same as like resistance. We need some extra energy over capacitive reactance to charge up a capacitor in the circuit.

What is the reactance XL of the inductor?

The inductive reactance formula is: Inductive reactance(XL) : 2π f L. where f is the frequency of the alternating current measured in Hertz(hz) and L is the inductance measured in henry(h). It is proportional to the frequency of the current and hence inversely proportional to the Time. XL α f and XL α (1/T).

What is the SI unit of capacitance?

The SI unit of capacitance is farad.

What is reactance and its SI unit?

Solution : The imaginary/virtual resistance offered by a capacitor to the flow of an alternating current is called capacitor reactance, `X_(C )=(1)/(omega C)`. Its SI unit is ohm.

What is XL XC and Z?

The Difference Explained Between: Impedance (Z), resistance (R), reactance (X), inductive reactance (XL), inductance (L), capacitive reactance (XC), c.