Topic: Impedance Electrical
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How to Measure Electrical Impedance
Electrical resistance or impedance is a measure of current in an element that heats up to dry your clothes or dishes or to heat your home, range or hot water. Electrical heating elements contain a resistance wire in the center that is surro... Read More »
Source: http://www.ehow.com/how_8180090_measure-electrical-impedance.html
What is impedance an electrical circuit?
Symbol Z) A measure of the total opposition to current flow in an alternating current circuit, made up of two components, ohmic resistance and reactance, and usually represented in complex notation as Z = R + iX, where R is the ohmic resist... Read More »
Source: http://wiki.answers.com/Q/What_is_impedance_an_electrical_circuit
What is electrical impedence?
Z = SQR (R² + XL²) Where: Z = Impedance (ohm) R = Resistance (ohm) XL= Inductance reactance (ohm) Impedance is an AC resistance. Read More »
Source: http://wiki.answers.com/Q/Why+impedance+in+electric+circuit
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Impedance Electrical
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Electical impedance of air is just under 377 Ohms. It depends on humidity and other factors. Dry air is close to free space. Scroll down to related links and look at "Characteristic impedance of free space ".
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Source: http://wiki.answers.com/Q/What_is_the_electrical_impedance_of_air
Electrical impedance is the total opposition to current flow. It includes both a resistive, or DC component and a reactive, or frequency-dependant component. Impedance is the same as resistance if the applied voltage is DC. For AC voltage, ...
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Source: http://wiki.answers.com/Q/What_is_electrical_impendance
( i′lek·trə·kəl im′pēd·əns ′mēd·ər ) (electricity) An instrument which measures the complex ratio of voltage to current in a given circuit at a given frequency. Also known as impedance meter.
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Source: http://www.answers.com/topic/electrical-resistance-tomography
BIE A method of measuring the proportion of fat in the body by the difference in the resistance to passage of an electric current between fat and lean tissue.
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Source: http://www.answers.com/topic/bioelectrical-impedance-analysis
Resistance is a concept used for DC (direct currents) whereas impedance is the AC (alternating current) equivalent. Resistance is due to electrons in a conductor colliding with the ionic lattice of the conductor meaning that electrical ener...
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Source: http://wiki.answers.com/Q/What_is_the_difference_between_electric...
We performed bio-electrical impedance analysis (BIA) on 38 healthy adults with an initial body mass index (+/- s.d.) of 30 kg/m2 (+/- 5) before and after a low calorie diet. Five weeks later a mean weight loss of 4.2 +/- 2.3 kg was observed...
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Source: http://www.ncbi.nlm.nih.gov/pubmed/1328088
