Transformer The transformer transits the energy from one place to another place without changes in frequency.There are two types in Transformers.They are: Step Down Step Up Step down means which converts the higher voltages to lower voltages Step up means which converts the lower voltage to higher voltages
Capacitor Capacitor stores the Energy in the form of Electric Field It allows AC and Blocks Dc It Doesn't allow the sudden changes of Voltages Inductor Inductor stores the energy in the form of Magnetic Field It allows DC and blocks AC It doesn't allow the sudden changes of currents