what is the need of using combination of resistances in electrical circuit? define equivalent resistance
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10
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Combination of resistances is used in circuit so as to get the desired value of current in an electrical circuit. a number of resistors hve to be used inorder to get a combination.
The combination can be done in the following three ways:
i) Series combination
ii) Parallel combination
iii) Series--parallel 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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7
Answer:
The needs of combination of resistance in electrical circuit are:(1)to get desirableelectric current.(2)to maintain desirable potential difference.(3)to maintain desirable resistance.
Explanation:
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