__Section 131-11: General__ | |

| 131-11-01 | | integral quantity (in electromagnetism) | |

| 131-11-02 | | circuit theory | |

| 131-11-03 | | circuit element | |

| 131-11-04 | | electric circuit element | |

| 131-11-05 | | magnetic circuit element | |

| 131-11-06 | | circuit | |

| 131-11-07 | | electric circuit | |

| 131-11-08 | | magnetic circuit | |

| 131-11-09 | | lumped, adj | |

| 131-11-10 | | distributed, adj | |

| 131-11-11 | | terminal | |

| 131-11-12 | | *n*-terminal, adj
| |

| 131-11-13 | | *n*-terminal circuit element
| |

| 131-11-14 | | *n*-terminal circuit
| |

| 131-11-15 | | two-terminal circuit | |

| 131-11-16 | | two-terminal element | |

| 131-11-17 | | time-independent, adj | |

| 131-11-18 | | linear, adj | |

| 131-11-19 | | non-linear, adj | |

| 131-11-20 | | symmetric, adj | |

| 131-11-21 | | asymmetric, adj | |

| 131-11-22 | | direct current | |

| 131-11-23 | | direct voltage | |

| 131-11-24 | | alternating current | |

| 131-11-25 | | alternating voltage | |

| 131-11-26 | | phasor | |

| 131-11-27 | | periodic conditions | |

| 131-11-28 | | sinusoidal conditions | |

| 131-11-29 | | direction of electric current | |

| 131-11-30 | | instantaneous power | |

| 131-11-31 | | instantaneous power (*n*-terminal circuit) | |

| 131-11-32 | | instantaneous absorbed power | |

| 131-11-33 | | instantaneous supplied power | |

| 131-11-34 | | passive | |

| 131-11-35 | | dissipative | |

| 131-11-36 | | non-dissipative | |

| 131-11-37 | | reactive | |

| 131-11-38 | | active | |

| 131-11-39 | | complex power | |

| 131-11-40 | | complex alternating power | |

| 131-11-41 | | apparent power | |

| 131-11-42 | | active power | |

| 131-11-43 | | non-active power | |

| 131-11-44 | | reactive power | |

| 131-11-45 | | var | |

| 131-11-46 | | power factor | |

| 131-11-47 | | non-active power factor | |

| 131-11-48 | | displacement angle | |

| 131-11-49 | | active factor | |

| 131-11-50 | | reactive factor | |

| 131-11-51 | | active current | |

| 131-11-52 | | non-active current | |

| 131-11-53 | | reactive current | |

| 131-11-54 | | inductive current | |

| 131-11-55 | | capacitive current | |

| 131-11-56 | | voltage (in circuit theory) | |

| 131-11-57 | | active energy | |

| 131-11-58 | | watt hour | |

__Section 131-12: Circuit elements and their characteristics__ | |

| 131-12-01 | | resistive *n*-terminal element | |

| 131-12-02 | | resistive two-terminal element | |

| 131-12-03 | | ideal resistor | |

| 131-12-04 | | resistance | |

| 131-12-05 | | differential resistance | |

| 131-12-06 | | conductance | |

| 131-12-07 | | differential conductance | |

| 131-12-08 | | ideal diode | |

| 131-12-09 | | capacitive *n*-terminal element | |

| 131-12-10 | | capacitive two-terminal element | |

| 131-12-11 | | electric charge (in circuit theory) | |

| 131-12-12 | | ideal capacitor | |

| 131-12-13 | | capacitance | |

| 131-12-14 | | differential capacitance | |

| 131-12-15 | | inductive *m*-terminal-pair element | |

| 131-12-16 | | inductive two-terminal element | |

| 131-12-17 | | linked flux, <circuit theory> | |

| 131-12-18 | | ideal inductor | |

| 131-12-19 | | inductance | |

| 131-12-20 | | differential inductance | |

| 131-12-21 | | ideal voltage source | |

| 131-12-22 | | source voltage | |

| 131-12-23 | | ideal current source | |

| 131-12-24 | | source current | |

| 131-12-25 | | independent source | |

| 131-12-26 | | controlled source | |

| 131-12-27 | | reluctant element | |

| 131-12-28 | | reluctance | |

| 131-12-29 | | permeance | |

| 131-12-30 | | coupling (in circuit theory) | |

| 131-12-31 | | capacitive coupling | |

| 131-12-32 | | capacitance matrix | |

| 131-12-33 | | inductive coupling | |

| 131-12-34 | | inductance matrix | |

| 131-12-35 | | self-inductance | |

| 131-12-36 | | mutual inductance | |

| 131-12-37 | | permeance matrix | |

| 131-12-38 | | self-permeance | |

| 131-12-39 | | mutual permeance | |

| 131-12-40 | | leakage permeance | |

| 131-12-41 | | inductive coupling factor | |

| 131-12-42 | | inductive leakage factor | |

| 131-12-43 | | impedance | |

| 131-12-44 | | apparent impedance | |

| 131-12-45 | | resistance to alternating current | |

| 131-12-46 | | reactance | |

| 131-12-47 | | inductive reactance | |

| 131-12-48 | | capacitive reactance | |

| 131-12-49 | | loss angle | |

| 131-12-50 | | impedance angle | |

| 131-12-51 | | admittance | |

| 131-12-52 | | apparent admittance | |

| 131-12-53 | | conductance for alternating current | |

| 131-12-54 | | susceptance | |

| 131-12-55 | | inductive susceptance | |

| 131-12-56 | | capacitive susceptance | |

| 131-12-57 | | immittance | |

| 131-12-58 | | input terminal | |

| 131-12-59 | | output terminal | |

| 131-12-60 | | port | |

| 131-12-61 | | input port | |

| 131-12-62 | | output port | |

| 131-12-63 | | terminal pair | |

| 131-12-64 | | one-port | |

| 131-12-65 | | two-port | |

| 131-12-66 | | two-terminal-pair network | |

| 131-12-67 | | *n*-terminal-pair network
| |

| 131-12-68 | | *n*-port
| |

| 131-12-69 | | balanced two-terminal-pair network | |

| 131-12-70 | | symmetric two-port network | |

| 131-12-71 | | asymmetric two-port network | |

| 131-12-72 | | closed circuit | |

| 131-12-73 | | open circuit | |

| 131-12-74 | | connection | |

| 131-12-75 | | series connection | |

| 131-12-76 | | parallel connection | |

| 131-12-77 | | cascade connection | |

| 131-12-78 | | ideal transformer | |

| 131-12-79 | | ideal gyrator | |

| 131-12-80 | | ideal attenuator | |

| 131-12-81 | | ideal amplifier | |

| 131-12-82 | | ideal impedance convertor | |

| 131-12-83 | | negative impedance convertor | |

| 131-12-84 | | series-resonant circuit | |

| 131-12-85 | | parallel-resonant circuit | |

| 131-12-86 | | transmission line | |

| 131-12-87 | | uniform transmission line | |

| 131-12-88 | | ohm | |

| 131-12-89 | | siemens | |

| 131-12-90 | | farad | |

| 131-12-91 | | henry | |

__Section 131-13: Network topology__ | |

| 131-13-01 | | network topology | |

| 131-13-02 | | topology of a network | |

| 131-13-03 | | network | |

| 131-13-04 | | *n*-terminal network
| |

| 131-13-05 | | two-terminal network | |

| 131-13-06 | | branch | |

| 131-13-07 | | node | |

| 131-13-08 | | path | |

| 131-13-09 | | graph (of a network) | |

| 131-13-10 | | connected network | |

| 131-13-11 | | unconnected network | |

| 131-13-12 | | loop | |

| 131-13-13 | | tree | |

| 131-13-14 | | co-tree | |

| 131-13-15 | | link (in network topology) | |

| 131-13-16 | | mesh | |

| 131-13-17 | | mesh current | |

| 131-13-18 | | planar graph | |

| 131-13-19 | | cut-set | |

| 131-13-20 | | adjacency matrix | |

| 131-13-21 | | branch-node incidence matrix | |

| 131-13-22 | | branch-mesh incidence matrix | |

| 131-13-23 | | L-network | |

| 131-13-24 | | mirror L-network | |

| 131-13-25 | | T-network | |

| 131-13-26 | | Π-network | |

| 131-13-27 | | bridge network | |

| 131-13-28 | | bridged-T network | |

| 131-13-29 | | ladder network | |

| 131-13-30 | | twin-T network | |

__Section 131-14: Two-port and __*n*-port networks | |

| 131-14-01 | | terminating immittance | |

| 131-14-02 | | terminating impedance | |

| 131-14-03 | | terminating admittance | |

| 131-14-04 | | load immittance | |

| 131-14-05 | | load impedance | |

| 131-14-06 | | load admittance | |

| 131-14-07 | | input immittance | |

| 131-14-08 | | input impedance | |

| 131-14-09 | | input admittance | |

| 131-14-10 | | output immittance | |

| 131-14-11 | | output impedance | |

| 131-14-12 | | output admittance | |

| 131-14-13 | | forward transfer impedance | |

| 131-14-14 | | reverse transfer impedance | |

| 131-14-15 | | forward transfer admittance | |

| 131-14-16 | | reverse transfer admittance | |

| 131-14-17 | | transfer immittance | |

| 131-14-18 | | forward transfer ratio | |

| 131-14-19 | | reverse transfer ratio | |

| 131-14-20 | | short-circuited | |

| 131-14-21 | | short-circuit, qualifier | |

| 131-14-22 | | open-circuited | |

| 131-14-23 | | open-circuit, qualifier | |

| 131-14-24 | | impedance matrix | |

| 131-14-25 | | admittance matrix | |

| 131-14-26 | | immittance matrix | |

| 131-14-27 | | reciprocity | |

| 131-14-28 | | reciprocal | |

| 131-14-29 | | *H*-matrix
| |

| 131-14-30 | | *K*-matrix
| |

| 131-14-31 | | chain matrix | |

| 131-14-32 | | reverse chain matrix | |

| 131-14-33 | | incident scattering variable | |

| 131-14-34 | | output scattering variable | |

| 131-14-35 | | scattering matrix | |

| 131-14-36 | | scattering parameter | |

| 131-14-37 | | wave transfer factor | |

| 131-14-38 | | wave chain matrix | |

__Section 131-15: Methods of circuit theory__ | |

| 131-15-01 | | network analysis | |

| 131-15-02 | | node method | |

| 131-15-03 | | mesh method | |

| 131-15-04 | | cut-set method | |

| 131-15-05 | | network synthesis | |

| 131-15-06 | | electric circuit model | |

| 131-15-07 | | equivalent electric circuit | |

| 131-15-08 | | Ohm's law | |

| 131-15-09 | | Kirchhoff law for nodes | |

| 131-15-10 | | Kirchhoff law for meshes | |

| 131-15-11 | | reciprocity theorem | |

| 131-15-12 | | superposition theorem | |

| 131-15-13 | | Thevenin theorem | |

| 131-15-14 | | Norton theorem | |

| 131-15-15 | | compensation theorem | |

| 131-15-16 | | Tellegen theorem | |

| 131-15-17 | | bus admittance matrix | |

| 131-15-18 | | bus impedance matrix | |

| 131-15-19 | | mesh impedance matrix | |

| 131-15-20 | | transfer function | |

| 131-15-21 | | frequency response | |

| 131-15-22 | | minimum-phase network | |

| 131-15-23 | | image impedance | |

| 131-15-24 | | iterative impedance | |

| 131-15-25 | | image transfer coefficient | |

| 131-15-26 | | image attenuation | |

| 131-15-27 | | image phase change | |

| 131-15-28 | | characteristic impedance | |

| 131-15-29 | | insertion transfer function | |

| 131-15-30 | | insertion attenuation | |

| 131-15-31 | | insertion phase change | |

| 131-15-32 | | complex current reflection factor | |

| 131-15-33 | | complex voltage reflection factor | |

| 131-15-34 | | reflection loss factor | |

| 131-15-35 | | reflection loss | |

| 131-15-36 | | reflection gain factor | |

| 131-15-37 | | reflection gain | |

| 131-15-38 | | ideal filter | |

| 131-15-39 | | prototype L-section filter | |

| 131-15-40 | | *m*-derived L-section filter
| |

| 131-15-41 | | image-parameter filter | |

| 131-15-42 | | constant *K* filter | |

| 131-15-43 | | insertion parameter filter | |

| 131-15-44 | | active RC filter | |

| 131-15-45 | | switched capacitor filter | |