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Duality is a transformation in which currents and voltages are interchanged. Two phenomena are said to be dual if they are described by equations of the same mathematical form.
Dual Quantities and Concepts
Sl No. Quantity/Concept Dual
1 Current Voltage
2 Resistance Conductance
3 Inductance Capacitance
4 Impedance Admittance
5 Reactance Susceptance
6 Branch current Branch voltage
7 Mesh or Loop Node or Node-pair
8 Mesh Current or Loop Current Node Voltage or Node-pair Voltage
9 Link Tree Branch
10 Link Current Tree Branch Voltage
11 Tree Branch Current Link Voltage
12 Tie-set Cut-set
13 Short-circuit Open-circuit
14 Parallel Paths Series Paths

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