What is the differences between mesh currents and branch cur

What is the differences between mesh currents and branch currents ?whta is the differences between a voltage drop and a node Voltage?

Solution

Branch currents are the currents between two adjacent nodes. Where as Mesh current or loop current is the total current flowing in a Mesh or a loop in a planar circuit.

Voltage drop is the voltage between any two points in the circuit. Where as node voltage is the voltage between a node and the ground. Node voltage can sometimes be equal to voltage drop but voltage drop cannot be node voltage.