engineering recuitment BEL Probationary Engineers Mock Test 2025 Network Theory Network Elements Star to Delta Conversion
For the transformation of a delta-connected network to a wye-connected network, the resistance between any two terminals in the wye-connection is:
1
The resistance is equal to the sum of the two delta resistances connected to the common terminal.
2
The resistance is equal to the sum of the two delta resistances connected to the common terminal, divided by the total number of resistances in the delta network.
3
The resistance is equal to the difference between the highest and lowest delta resistances.
4
The resistance is equal to the product of the two delta resistances connected to the common terminal, divided by the sum of all three delta resistances.