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E5B02

ELECTRICAL PRINCIPLES · Time constants and phase relationships: RL and RC time constants; phase angle in reactive circuits and components; admittance and susceptance

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What letter is commonly used to represent susceptance?

  1. AG
  2. BX
  3. CY
  4. DB
Why Admittance is the reciprocal of impedance, and just as impedance is written Z = R + jX, admittance is written Y = G + jB. In that pairing the real part G is conductance (the reciprocal counterpart of resistance) and the imaginary part, susceptance, is the reciprocal counterpart of reactance and carries the letter B. Susceptance is measured in siemens, the same unit as conductance and admittance.
Watch out Y is tempting because it is the admittance itself, the complete complex quantity, not just its reactive part; G is conductance and X is reactance in the impedance form.
Z = R + jX flips to Y = G + jB. Susceptance is the B in that pair.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
← E5B01 All of E5B E5B03 →

The rest of E5B

  1. E5B01 What is the term for the time required for the capacitor in an RC circuit to be charged to 63.2% of the appli…
  2. E5B02 What letter is commonly used to represent susceptance?
  3. E5B03 How is impedance in polar form converted to an equivalent admittance?
  4. E5B04 What is the time constant of a circuit having two 220-microfarad capacitors and two 1-megohm resistors, all i…
  5. E5B05 What is the effect on the magnitude of pure reactance when it is converted to susceptance?
  6. E5B06 What is susceptance?
  7. E5B07 What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 500 …
  8. E5B08 What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 300 …
  9. E5B09 What is the relationship between the AC current through a capacitor and the voltage across a capacitor?
  10. E5B10 What is the relationship between the AC current through an inductor and the voltage across an inductor?
  11. E5B11 What is the phase angle between the voltage across and the current through a series RLC circuit if XC is 25 o…
  12. E5B12 What is admittance?
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