Basic Electrical Engineering Series
Definition
Definition
Kirchoffs Laws
Kirchoffs First Law - Current Law – KCL
"The algerbraic sum of currents at a circuit node is zero" ..... Gustav Kirchoff 1824 - 1887
Therefore the total current flowing into a node must be equal to the current flowing out of the node. Note : The minus sign just indicates that the current is flowing out of the node.
Kirchoffs Second Law - Voltage Law – KVL
"In any closed circuit, the algerbraic sum, of the products of the currents and resistance in each branch of the circuit, is equal to the resultant applied emf " ..... Gustav Kirchoff 1824 - 1887
In other words, all the PD's in a circuit must add up to the supplied emf
