Faraday's Law and Transmission Lines

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Questions and Answers

Quale de le sequente non es un application de le Legge de Faraday?

  • Motors electric
  • Resistores (correct)
  • Transformatores
  • Generatores electric

Quo es le principal uso de le lineas de transmission?

  • Inverter el electricitate
  • Accumulare energia
  • Converte energie solar in electricitate
  • Transmitte energia electric e signal (correct)

Quale combination de parameters es parte del modelle circuit de una linea de transmission?

  • L, I, A, e P
  • R, V, W, e G
  • R, L, C, e G (correct)
  • C, Q, T, e R

Quale de le sequente formula representa le inductantia interne in un coaxial line?

<p>$L = \frac{\mu}{8\pi}$ (B)</p> Signup and view all the answers

Quale es le unitate de mesura pro capacitance?

<p>F/m (A)</p> Signup and view all the answers

Quo describe le capacitance in un coaxial line?

<p>$C = \frac{Q}{V}$ (C)</p> Signup and view all the answers

Quale de le sequente es un parameter non usate in le calculo de le resistance in un coaxial line?

<p>Factor de dielectrico (D)</p> Signup and view all the answers

Quale es le relation de inductantia e corrente in un coaxial line?

<p>$L = \frac{\mu I}{2\pi a}$ (D)</p> Signup and view all the answers

Qual es le formula pro calcular el resistentia in un linea de duo fili a bass frequencies?

<p>$R = \frac{2}{\sigma c \pi a^2}$ (C)</p> Signup and view all the answers

Quo es le relation inter le inductantia $L_1$ e $L_{12}$ in un linea de duo fili?

<p>$L_1 = L_{12} + L_{in}$ (A)</p> Signup and view all the answers

Qual es le unita de misura pro le inductantia in un linea de duo fili?

<p>H/m (C)</p> Signup and view all the answers

Quo es le expression pro le inductantia $L_{12}$ in un linea de duo fili?

<p>$L_{12} = \int_0^d \int_0^z \frac{\mu I}{2\pi r} dr dz$ (D)</p> Signup and view all the answers

Quo es le expression pro le capacitantia in un coaxial line?

<p>$C = \frac{2\pi\epsilon}{\ln(b/a)}$ (A)</p> Signup and view all the answers

Qual es le significato de $\sigma$ in le contextu de transmission lines?

<p>Conductivitate (D)</p> Signup and view all the answers

Qual es le expression pro le capacitantia total $L_{circuit}$ in un linea de duo fili?

<p>$L_{circuit} = L_1 + L_2$ (B)</p> Signup and view all the answers

Qual es le metodo pro calcular le inductantia $L_{in}$ in un linea de duo fili?

<p>$L_{in} = \frac{\mu}{8\pi}$ (A)</p> Signup and view all the answers

Flashcards

Resistencia de un conductor

Le resistencia de un conductor, mesurate in ohm per metro.

Capacitancia de un conductor

Le capacitantia de un conductor, mesurate in farad per metro.

Inductantia de un conductor

Le inductantia de un conductor, mesurate in henry per metro.

Potentia de un conductor

Le quantitate de energia per unitate de tempore passate per un conductor.

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Frequentia de corte

Le frequentia a qual un conductor comencia a comportar se como un circuito aperte.

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Longitud de onde

Le longitud de un conductor a qual le onde electromagnetic viaggia in un periodo.

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Velocitate de propagation

Le velocitate a qual le onde electromagnetic viaggia in un conductor.

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Attenuation

Le quantitate de attenuation del signal in un conductor per unitate de longitud.

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Lineas de transmission

Le lineas de transmission es usate pro transmetter energia electric (distribution de potentia a basse frequentia) e signales (communication a alte frequentia) de un puncto a un altere, specialmente de un fonte a un carga.

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Type de lineas de transmission

Coaxial Line, Two Wire Line e Planar Line.

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Modelo de Circuito de Linea de Transmission

Un modelo de circuito que representa le componentes de un linea de transmission per valores concentrate. Isto include resistencia (R), inductancia (L), capacitancia (C) e conductancia (G), que varia con le configuration e le materiales del linea de transmission.

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Resistentia in un linea de coaxial

Le resistencia per unidade de longitude del conductor central e del escudo de un coaxial linea a basse frequentias. Rin es le resistencia interne e Rout es le resistencia externe.

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Inductancia in un linea de coaxial

Le inductantia per unite de longitude del conductor central in un coaxial linea. L es le inductantia total.

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Le Formula de Inductancia de un Linea de Coaxial

Le inductantia per unite de longitude de un linea de coaxial. Es dependente de 'b' (radio externe del escudo) e 'a' (radio del conductor central).

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Le Formula de Capacitancia de un Linea de Coaxial

Le capacitancia per unite de longitude de un linea de coaxial. C es le capacitancia total. Le capacitancia es inversamente proportional al logaritmo del ratio del radios.

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Relation inter L e C in un linea coaxial

Relation inter le inductantia (L) e le capacitancia (C) per unite de longitude in un linea coaxial. 'µ' es le permeabilitato del medio e 'ε' es le permittivitate del medio.

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Study Notes

Faraday's Law Applications

  • Inductors are discussed.
  • Transformers are mentioned.
  • Electrical generators are included.
  • Electrical motors are a part of this topic.
  • Transmission lines are also discussed.

Transmission Line Parameters

  • Transmission lines facilitate the transmission of electrical energy and signals, mainly from a source to a load, particularly relevant for power distribution (low frequency) and communication (high frequency).
  • Types of transmission lines include coaxial, two-wire, and planar lines, each with unique characteristics and parameter calculations.
  • Transmission line circuit models are used to analyze and understand these lines' behavior.
  • Resistance, inductance, capacitance, and conductance are critical parameters to evaluate transmission characteristics.

Coaxial Line

  • Inductance: Defined by the formula H = Ir/(2Ï€a)µ. The internal inductance is calculated.
  • Capacitance: The capacitance formula is provided as C = 2πε/(ln(b/a)). Calculation for capacitance is part of the content.

Two Wire Line

  • Resistance: Defined by the formula R = 2/(σπa²), where σ is the conductivity of the material and a is the radius of the wire.
  • Inductance: Formula provided for inductance of two wire lines, L = µ*ln (d/a)/(2Ï€). Calculating inductance is crucial.
  • Capacitance: The capacitance formula is given as C = 2πε/(ln(d/a)). This calculation is essential.
  • Conductance for two wire line is also covered.

Planar Line

  • Parameters (High Frequency): Resistance, capacitance, inductance, and conductance are provided along with formulas. The topic covers high-frequency characteristics for this type of line. Skin depth (δ) is defined as a relevant property.

Power Lines

  • This section pertains specifically to single-phase and three-phase power lines.

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