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Supernode (circuit)
In circuit theory, a supernode is a theoretical construct that can be used to solve a circuit. This is done by viewing a voltage source on a wire as a point source voltage in relation to other point voltages located at various nodes in the circuit, relative to a ground node assigned a zero or negative charge.
Each supernode contains two nodes, one a non-reference node and another node that may be a second non-reference node or the reference node. Supernodes containing the reference node have one node voltage variable. For nodal analysis, the supernode construct is only required between two non-reference nodes.
==Nodal Analysis==
It is related to Kirchhoff's Current Law which states that the total or algebraic sum of currents meeting at a junction or node is zero.Every junction where two or more branches meet is a node.One of the node in the network is taken as reference node.If there are n nodes in any network,the number of simultaneous equation to be solved will be (n-1).
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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