 Home
 Products
 Integration
 Tutorial
 Barcode FAQ
 Purchase
 Company
barcode generator in vb.net Susceptance in Software
Susceptance Reading USS Code 39 In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Make Code 39 In None Using Barcode maker for Software Control to generate, create USS Code 39 image in Software applications. Sometimes, you ll come across the term susceptance in reference to ac circuits. Susceptance is symbolized by the capital letter B. It is the reciprocal of reactance. Susceptance can be either capacitive or inductive. These quantities are symbolized as BC and BL, respectively. Therefore we have these two relations: BC = 1/XC BL = 1/XL All values of B theoretically contain the j operator, just as do all values of X. But when it comes to finding reciprocals of quantities containing j, things get tricky. The reciprocal of j is equal to its negative! Expressed mathematically, we have these two facts: 1/j = j 1/( j ) = j As a result of these properties of j, the sign reverses whenever you find a susceptance value in terms of a reactance value. When expressed in terms of j, inductive susceptance is negative imaginary, and capacitive susceptance is positive imaginary just the opposite situation from inductive reactance and capacitive reactance. Suppose you have an inductive reactance of 2 . This is expressed in imaginary terms as j2. To find the inductive susceptance, you must find 1/( j2). Mathematically, this expression can be converted to a realnumber multiple of j in the following manner: 1/( j 2) = (1/j )(1 2) = (1/j )0.5 = j0.5 Now suppose you have a capacitive reactance of 10 . This is expressed in imaginary terms as j10. To find the capacitive susceptance, you must find 1/( j10). Here s how this can be converted to the straightforward product of j and a real number: Code 39 Full ASCII Recognizer In None Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications. Code39 Drawer In C#.NET Using Barcode drawer for VS .NET Control to generate, create USS Code 39 image in .NET framework applications. Susceptance 239
Code39 Drawer In VS .NET Using Barcode creation for ASP.NET Control to generate, create Code 3/9 image in ASP.NET applications. USS Code 39 Drawer In .NET Framework Using Barcode creation for .NET framework Control to generate, create Code 39 Extended image in Visual Studio .NET applications. 1/( j10) = (1/ j )(1 10) = (1/ j)0.1 = j 0.1 When you want to find an imaginary value of susceptance in terms of an imaginary value of reactance, first take the reciprocal of the realnumber part of the expression, and then multiply the result by 1. Code 3/9 Maker In VB.NET Using Barcode printer for Visual Studio .NET Control to generate, create Code 39 Full ASCII image in .NET applications. Barcode Generation In None Using Barcode printer for Software Control to generate, create bar code image in Software applications. Problem 155 Suppose you have a capacitor of 100 pF at a frequency of 3.00 MHz. What is BC First, find XC by the formula for capacitive reactance: ANSI/AIM Code 39 Printer In None Using Barcode printer for Software Control to generate, create ANSI/AIM Code 39 image in Software applications. Draw Code 128 Code Set B In None Using Barcode creator for Software Control to generate, create Code 128A image in Software applications. XC = 1/(6.28f C ) Note that 100 pF = 0.000100 F. Therefore: XC = 1/(6.28 3.00 0.000100) = 1/0.001884 = 531 The imaginary value of XC is equal to j531. The susceptance, BC, is equal to 1/X C. Thus, BC = 1/( j531) = j0.00188, rounded to three significant figures. The general formula for capacitive susceptance in siemens, in terms of frequency in hertz and capacitance in farads, is: BC = 6.28f C This formula also works for frequencies in megahertz and capacitances in microfarads. GS1  13 Printer In None Using Barcode creation for Software Control to generate, create EAN13 image in Software applications. Encode ECC200 In None Using Barcode generator for Software Control to generate, create Data Matrix 2d barcode image in Software applications. Problem 156 Suppose an inductor has L = 163 H at a frequency of 887 kHz. What is BL Note that 887 kHz = 0.887 MHz. You can calculate XL from the formula for inductive reactance: Encode Bookland EAN In None Using Barcode drawer for Software Control to generate, create Bookland EAN image in Software applications. UPCA Supplement 2 Creator In VB.NET Using Barcode creator for VS .NET Control to generate, create UPCA image in Visual Studio .NET applications. XL = 6.28fL = 6.28 0.887 163 = 908 The imaginary value of XL is equal to j908. The susceptance, BL = is equal to 1/XL. It follows that BL = 1/j 908 = j0.00110. The general formula for inductive susceptance in siemens, in terms of frequency in hertz and inductance in henrys, is: BL = 1/(6.28f L) This formula also works for frequencies in kilohertz and inductances in millihenrys, and for frequencies in megahertz and inductances in microhenrys. Bar Code Creation In ObjectiveC Using Barcode generator for iPad Control to generate, create bar code image in iPad applications. Draw Data Matrix 2d Barcode In Java Using Barcode maker for Java Control to generate, create DataMatrix image in Java applications. 240 Impedance and Admittance
Generating Code 3/9 In .NET Framework Using Barcode drawer for .NET Control to generate, create Code39 image in .NET framework applications. Generate EAN13 Supplement 5 In VB.NET Using Barcode creation for .NET Control to generate, create EAN13 image in .NET framework applications. Admittance
Data Matrix ECC200 Creator In None Using Barcode drawer for Font Control to generate, create DataMatrix image in Font applications. Bar Code Encoder In None Using Barcode creation for Font Control to generate, create barcode image in Font applications. Realnumber conductance and imaginarynumber susceptance combine to form complex admittance, symbolized by the capital letter Y. This is a complete expression of the extent to which a circuit allows ac to flow. As the absolute value of complex impedance gets larger, the absolute value of complex admittance becomes smaller, in general. Huge impedances correspond to tiny admittances, and vice versa. Admittances are written in complex form just like impedances. But you need to keep track of which quantity you re talking about! This will be obvious if you use the symbol, such as Y = 3 j0.5 or Y = 7 + j3. When you see Y instead of Z, you know that negative j factors (such as in the quantity 3 j 0.5) mean there is a net inductance in the circuit, and positive j factors (such as in the quantity 7 + j3) mean there is net capacitance. Admittance is the complex composite of conductance and susceptance. Thus, complex admittance values always take the form Y = G + jB. When the j factor is negative, a complex admittance may appear in the form Y = G jB. Do you remember how resistances combine with reactances in series to form complex impedances In Chaps. 13 and 14, you saw series RL and RC circuits. Did you wonder why parallel circuits were ignored in those discussions The reason was the fact that admittance, not impedance, is best for working with parallel ac circuits. Resistance and reactance combine in a messy fashion in parallel circuits. But conductance (G ) and susceptance (B ) merely add together in parallel circuits, yielding admittance (Y ). Parallel circuit analysis is covered in detail in the next chapter.

