Electrical tension is the potential difference between two points of an electrical or electronic circuit, expressed in volts. It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor.... phasor
Phasor (electronics)
In physics and engineering, a phase vector is a representation of a sine wave whose amplitude , phase , and frequency are time-invariant. It is a subset of a more general concept called analytic signal.... to the electric current
Electric current
Electric current is the flow of electric charge. The electric charge may be either electrons or ions.The International System of Units unit of electric current intensity is the ampere.... phasor, as in
Electrical impedance, or simply impedance, describes a measure of opposition to a sinusoidal alternating current . Electrical impedance extends the concept of Electrical resistance to AC circuits, describing not only the relative amplitudes of the voltage and Electric current, but also the relative Phase .... , a measure of opposition to time-varying electric current in an electric circuit.
The characteristic impedance or surge impedance of a uniform transmission line, usually written , is the ratio of the amplitudes of a single pair of voltage and current waves propagating along the line in the absence of reflections.... , a figure of merit for a transmission line
Transmission line
A transmission line is the material Transmission medium or structure that forms all or part of a Course from one place to another for directing the transmission of energy, such as electromagnetic waves or acoustic waves, as well as electric power transmission.... to indicate the electrical impedance the transmission line must be terminated in order to behave like a transmission line of infinite length
Impedance matching is the electronics design practice of setting the input impedance of an electrical load equal to the fixed output impedance of the signal source to which it is ultimately connected, usually in order to Maximum power theorem and minimize Signal reflection from the load.... and Impedance mismatch.
Impedance of free space, a universal constant.
Electromagnetic impedance, a constant related to electromagnetic wave propagation in a medium
Transmission medium
A transmission medium is a material substance which can wave propagation energy waves. For example, the transmission medium for sound received by the ears is usually air, but solids and liquids may also act as transmission media for sound.... .
Mechanical impedance is a measure of how much a structure resists motion when subjected to a given force. It relates forces with velocities acting on a mechanical system.... , a measure of opposition to motion of a structure subjected to a force
Force
In physics, a force is that which can cause an object with mass to change its velocity. Force has both Euclidean_vector#Length of a vector and Direction , making it a Vector quantity.... .
The acoustic impedanceZ is a frequency f dependent parameter and is very useful, for example, for describing the behaviour of musical wind instruments.... , a constant related to the propagation of sound waves in an acoustic medium.
A linear response function describes the input-output relationshipof a signal transducer such as a radio turning electromagnetic waves into music... , a general way to represent the input-output characteristics of a system.
The object-relational impedance mismatch is a set of conceptual and technical difficulties that are often encountered when a relational database management system is being used by a program written in an object-oriented programming language or style; particularly when objects or class definitions are mapped in a straightforward way to databas... , difficulties encountered when a relational database management system is in an object-oriented programming language.
