Network Terminology & Basic Concepts

Question 1

KCL current law
KVL voltage law
and what is node

Answer 1

At every node in an electric network, the algebraic sum
of currents is Zero (or) sum of incoming currents is equal to the sum
of outgoing currents”.

Around every closed path in an electric network, the
algebraic sum of voltages is Zero

NODE
A point at which
two or more elements are interconnected is a node

Question 2

what is Superposition Theorem

Answer 2

“In a linear network with more than one independent
source, the total response in any element is the algebraic
sum of the individual responses caused by each
independent source acting alone, while all other
independent sources are replaced by their internal
resistances i.e., all other ideal voltage sources with short
circuit and all other ideal current sources with open circuit.
”

Question 3

what is Thevenins theorem

thevenin current formula

Answer 3

“A linear network with a large number of independent and
dependent sources and resistors between two terminals
can be replaced with a simple two element series
equivalent in which a voltage source called ‘Thevenin’s
Equivalent Voltage’(VTH)is in series with a resistance called
‘Thevenin’s Equivalent Resistance’ (RTH).”

formula:
IL =Vth/Rth+R(load)