I started reading a textbook about basic electronics and I reached a section about series-parallel circuits. Here is an example of a series-parallel circuit:
According to the book, in a series-parallel circuit all resistances must be the same. In this example each resistor is 100 ohms.
It also says that this example is connected in an n by n matrix. What exactly is this?
The book explains a practical aspect of using series-parallel circuits by saying that a resistive component can be obtained with a large power handling capacity if there is a series-parallel configuration of resistors of the same value(as shown above in the diagram). Is there an explanation for this phenomena? I do know what power is(Power=voltage*current) but what does power really represent? How is knowing the voltage times current useful?
It says that this configuration can dissipate more power than just using a single resistor. What is power dissipation?
I know that my initial question was what is an n by n matrix sorry if I asked too many questions(I am a newbie) :) .