Basics of Electric Circuits

Explore the Wheatstone balanced bridge circuit, applying the voltage divider rule to series and parallel resistors, and identify that no current flows through the diagonal when balanced.

Explain wye (star) to delta conversion for a three-terminal network, define the distances AB, BC, and CA, and compute the related resistances using star and delta formulas.

Explore the equivalent resistance of bridge circuits, determine when a bridge is balanced, and apply series and parallel reductions to compute total resistance.

This lecture explains how balanced bridge circuits allow removing the diagonal branch, converting a network into series and parallel resistors to find the equivalent resistance between points A and B.

Demonstrate how wye-delta conversions transform star and delta resistor configurations into simple series and parallel networks, guiding AB calculations in basic electric circuits.

Apply Kirchhoff's current law to node voltage analysis, identify nodes, assign reference voltage, formulate nodal equations, and solve for node voltages and currents.

Apply Kirchhoff's voltage law and mesh current analysis to write loop equations, solve for mesh currents, and determine branch currents in electrical circuits.

Identify mesh loops and assign mesh currents. Apply Kirchhoff's voltage law to build and solve simultaneous equations, including super mesh analysis with examples.

Differentiate active and passive elements by power flow: passive elements absorb power, while active elements deliver power, determined by current entering or leaving the high-potential terminal.