Before revision: The total equivalent conductance of the supernode is the sum of the conductance of each branch, since all the branches are in parallel.Ghosh , p. 172 Branch variations When computing the equivalent conductance all the generators have to be switched off, so all voltage generators become short circuits and all current generators become open circuits.
After revision: ChakrabortyThe total equivalent conductance of the supernode is the sum of the conductance of each branch, since all the branches are in parallel.Ghosh , p. 172 Branch variations When computing the equivalent conductance all the generators have to be switched off, so all voltage generators become short circuits and all current generators become open circuits.