Now in a lossless network the portal power entering the nth port is equal to the sum is equal to the difference of the power carried by the incident wave and the power returned by the reflected way, so that way I can say the portal power entering is given like this so then the total input power for all ports or the total power entering the whole network is nothing but the summation of the powers entering all the ports.
त्याप्रमाणे असं म्हणता येईल की ही nth port मध्ये जाणारी total power आहे.