What is the need of using combination of resistances in electrical cir

1.	What is the need of using combination of resistances in electrical circuits ? Define equivalent resistance?
Answer» The need of using combination of resistances is to obtain a desired value of current in an electrical circuit, it can be done in three ways they are i) series combination, ii) parallel combination and iii) mixed combination. Equivalent resistance: If a single resistance can replace the combination of resistances in such a manner that the current in the circuit remains unchanged, then that single resistance is called the equivalent resistance.

What is the need of using combination of resistances in electrical circuits ? Define equivalent resistance?

Answer»

The need of using combination of resistances is to obtain a desired value of current in an electrical circuit, it can be done in three ways they are i) series combination, ii) parallel combination and iii) mixed combination.

Equivalent resistance: If a single resistance can replace the combination of resistances in such a manner that the current in the circuit remains unchanged, then that single resistance is called the equivalent resistance.

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What is the need of using combination of resistances in electrical circuits ? Define equivalent resistance?

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