similar to the mechanical system, very commonly used systems are of electrical type. The behaviour of such systems is governed by ohm's law. The dominant elements of an electrical system are,
i) Resistor ii) Inductor iii) Capacitor.
i) Resistor : Consider a resistance carrying current T as shown, then the voltage drop across it can be written as,
suppose it carries a current (I1-I2) then for the polarity of the voltage drop shown its equation is,
ii) Inductor : Consider an inductor carrying current T as shown, then the voltage drop across it can be written as,
iii) Capacitor: consider a capacitor carrying current T as shown, then the voltage drop across it can be written as,
If it carries a current (I1-I2) then for the polarity shown its voltage equation is,
