Is kirchoff's voltage law applicable for an open circuit?

Obey Ohm's Law. Circulating within the circuit. Equations and for this we can use Kirchoffs Circuit Law.

With the conservation of current and energy within electrical circuits. Kirchoffs Voltage Law, (KVL). Charge is lost within the node".

Must be equal to zero, I(exiting) + I(entering) = 0. This idea by Kirchoff is commonly known as the Conservation of Charge. Two or more current carrying paths or elements such as cables and components.

Of a node a closed circuit path must exist. We can use Kirchoff's current law when analysing parallel circuits. Voltage around the loop is equal to the sum of all the voltage drops within the same loop" which is also equal to zero.

In other words the algebraic sum of all voltages within the loop must be equal to zero. Conservation of Energy. Voltage drops, either positive or negative, and returning back to the same starting point.

Same direction either clockwise or anti-clockwise or the final voltage sum will not be equal to zero. Voltage law when analysing series circuits. Loops and meshes.

These terms are used frequently in circuit analysis so it is important to understand them. Loop conducting path in which an electrical current flows. Elements or sources with no elements or sources included more than once.

Point between two or more branches. A node is indicated by a dot. Or group of components such as resistors or a source which are connected between two nodes.

Path in a circuit in which no circuit element or node is encountered more than once. Loop that does not have a closed path. No components are inside a mesh.

Components are connected in series if they carry the same current. Components are connected in parallel if the same voltage is across them. The circuit has 3 branches, 2 nodes (A and B) and 2 independent loops.

Initially chosen was wrong, but never the less still valid. In fact, the 20v battery is charging the 10v battery. Assume all voltages and resistances are given.

Label each branch with a branch current. Find Kirchoff's first law equations for each node. Find Kirchoff's second law equations for each of the independent loops of the circuit.

Use Linear simultaneous equations as required to find the unknown currents. Helps to reduce the amount of mathematics required by using just Kirchoff's laws. Mesh Current Analysis to do just that.