A point or junction where two or more circuit's elements (resistor, capacitor etc.) meet is called Node.
Branch
That part of section of circuit which locate between two junctions is called branch. In branch, one or more elements can be connected and they have two terminals.
Loop
Is any close path in the circuit.Loop counts starting at a node passing through a set of nodes and returning to the starting node without passing through any node more that once.
Kirchoff's Current Law (KCL)
This law is also called Kirchhoff's first law, Kirchhoff's point rule, or Kirchhoff's junction
rule (or nodal rule).
The principle of conservation of electric charge implies that:
At any node (junction) in an electrical circuit, the sum of currents flowing into that node is equal to the sum of currents flowing out of that node, or:
The algebraic sum of currents in a network of conductors meeting at a point is zero.
Kirchoff's Voltage Law (KVL)
This law is also called Kirchhoff's second law, Kirchhoff's loop (or mesh) rule, and Kirchhoff's second rule.
The principle of conservation of energy implies that. The directed sum of the electrical potential differences (voltage) around any closed network is zero, or:
More simply, the sum of the emfs in any closed loop is equivalent to the sum of the potential drops in that loop, or:
The algebraic sum of the products of the resistances of the conductors and the currents in them in a closed loop is equal to the total emf available in that loop.
"There must be a positive and negative in everything in the universe in order to complete a circuit or circle, without which there would be no activity, no motion"
- John McDonald
No comments:
Post a Comment