use delta-star conversion to find a resistance between terminals 'AB' of the circuit shown in given figure network
KVL and KCL
KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.
Sign Convention
Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.
use delta-star conversion to find a resistance between terminals 'AB' of the circuit shown in given figure network.
To solve above question, one should know about delta and star /wye connection.
Delta Connection: In delta connection three resistor are connected in such a way that their positive terminal relates to negative terminal of other resistor, and they form a close loop.
Star/Wye Connection: In star connection the either positive terminal or negative terminal is combining to form a single neutral point and connection us taken out from other three terminal of the resistances.
Another concept required is understanding of series parallel connection:
Series connection: When positive terminal of a element is connected with negative terminal of other element and this series continues then those elements are said to be in series connection. In series connection the current remain same through all the elements and voltage is divided among them.
Parallel connection: When all the positive terminals of a elements are joint together and negative terminals are joint together to form a single positive and negative terminal then the elements are said to be in parallel connection. For parallel connection the voltage across each element remains the same but the current is divided among them.
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