Experiement1: To verify network reduction using star-delta transformation

To verify network reduction using star-delta transformation, one has to:
Identify if any series/parallel: Find if an resistance/impedance are connected in series/parallel
Identify the star/delta network: Find the star/delta network in the circuit.
Convert to an equivalent star/delta network: Use the formulas to convert the star/delta network to an equivalent delta/star network.
Simplify the circuit: Simplify the circuit.
Calculate the current: Use Ohm's law to calculate the current