Which of the following statements is true for Norton's Theorem ?
1
It is used to represent a linear network by an equivalent circuit having a current source and impedance in series with it.
2
It is used to represent a linear network by an equivalent circuit having a voltage source and impedance in series with it.
3
It is used to represent a linear network by an equivalent circuit having a voltage source and impedance in parallel with it.
4
It is used to represent a linear network by an equivalent circuit having a current source and impedance in parallel with it