Re: Duality theorem
Quantities having duality property
voltage and current
resistance and conductance
capacitor and inductance
flux and charge
loop and node
impedance and admittance
example
V=RI is equivalent to I=VG
If you substitute V with I, R with G and I with V you get same equation with differnt form. This is called duality.
V=LdI/dt and I = CdV/dt change V to I and L to C
Q=CV and Φ = LI
Also you can change a parallel combination of current source and conductance with series combination of voltage source and resistance.
I and L in parallel change to V and C in series etc..
So you can change a circuit form by changing V to I, L to C, Z to Y, R to G and all parralel connection to series and vice versa