User:Shahrul84

CIRCUIT THEORY

Basic Laws

1.	Ohm’s Law •	Voltage across a resistor is directly proportional to the current flowing the resistor.

2.	Short & open circuit 2.1.	Short circuit is a circuit element with resistance approaching zero. Perfect conductor 2.2.	Open circuit is a circuit element with resistance approaching infinity. Perfect insulator

3.	Branch, Node and Loop a & b are nodes, 1 & 2 are loops 4.	Kirchoff’s Voltage Law (KVL) •	The algebraic sum of all voltage around a loop is zero.

5.	Kirchoff’s Current Law (KCL) •	The algebraic sum of all current entering a node is zero.

6.	Series resistors & Voltage Divider Rule (VDR)

7.	Parallel Resistors & Current Divider Rule (CDR)

8.	Delta-Wye  Transformations

9.	Voltage & Current Source

10.	Maximum power transfer (DC & AC) 10.1.	DC

10.2.	AC