Browse Definitions :
Definition

# susceptance

Susceptance (symbolized B ) is an expression of the ease with which alternating current ( AC ) passes through a capacitance or inductance .

In some respects, susceptance is like an AC counterpart of direct current ( DC ) conductance . But the two phenomena are different in important ways, and they can vary independently of each other. Conductance and susceptance combine to form admittance , which is defined in terms of two-dimensional quantities known as complex number s.

When AC passes through a component that contains a finite, nonzero susceptance, energy is alternately stored in, and released from, a magnetic field or an electric field. In the case of a magnetic field, the susceptance is inductive. In the case of an electric field, the susceptance is capacitive. Inductive susceptance is assigned negative imaginary number values, and capacitive susceptance is assigned positive imaginary number values.

As the inductance of a component increases, its susceptance becomes smaller negatively (that is, it approaches zero from the negative side) in imaginary terms, assuming the frequency is held constant. As the frequency increases for a given value of inductance, the same thing happens. If L is the inductance in henries ( H ) and f is the frequency in hertz ( Hz ), then the susceptance - jB L , in imaginary-number siemens , is given by:

- jB L = - j (6.2832 fL ) -1

where 6.2832 is approximately equal to 2 times pi , a constant representing the number of radian s in a full AC cycle, and j represents the unit imaginary number (the positive square root of -1).

As the capacitance of a component increases, its susceptance becomes larger positively in imaginary terms, assuming the frequency is held constant. As the frequency increases for a given value of capacitance, the same thing happens. If C is the capacitance in farads ( F ) and f is the frequency in Hz, then the susceptance +jB C , in imaginary-number ohms, is given by:

+jX C = + j (6.2832 fC )

Also see admittance , conductance , reactance , resistance , impedance , ohm , siemens , henry , and farad .

This was last updated in March 2010
• network management system

A network management system, or NMS, is an application or set of applications that lets network engineers manage a network's ...

• host (in computing)

A host is a computer or other device that communicates with other hosts on a network.

• Network as a Service (NaaS)

Network as a service, or NaaS, is a business model for delivering enterprise WAN services virtually on a subscription basis.

• Common Vulnerability Scoring System (CVSS)

The Common Vulnerability Scoring System (CVSS) is a public framework for rating the severity of security vulnerabilities in ...

• Dridex malware

Dridex is a form of malware that targets victims' banking information, with the main goal of stealing online account credentials ...

• crypto wallet (cryptocurrency wallet)

A crypto wallet (cryptocurrency wallet) is software or hardware that enables users to store and use cryptocurrency.

• blockchain decentralization

Decentralization is the distribution of functions, control and information instead of being centralized in a single entity.

• outsourcing

Outsourcing is a business practice in which a company hires a third party to perform tasks, handle operations or provide services...

• chief operating officer (COO)

A chief operating officer (COO) is the corporate executive who oversees ongoing business operations within the company.

• team collaboration

Team collaboration is a communication and project management approach that emphasizes teamwork, innovative thinking and equal ...

• employee self-service (ESS)

Employee self-service (ESS) is a widely used human resources technology that enables employees to perform many job-related ...

• learning experience platform (LXP)

A learning experience platform (LXP) is an AI-driven peer learning experience platform delivered using software as a service (...

• market segmentation

Market segmentation is a marketing strategy that uses well-defined criteria to divide a brand's total addressable market share ...

• sales pipeline

A sales pipeline is a visual representation of sales prospects and where they are in the purchasing process.