Electric Circuits
Nodal analysis can be applied for

 neither planar and non planar networks.
 planar networks.
 both planar and non planar networks.
 non planar networks.

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Electric Circuits
A pole of driving point impedance is

 zero current for a finite value of driving voltage.
 zero voltage for a finite value of driving current.
 zero current for a finite value of driving current.
 zero voltage for a finite value of driving voltage.

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