Question

Explain series combination of resistor ?

Answer 1

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Answer 2

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There are 2 types of combination of resistor - Series and Parallel


=> Imagine 3 Resistors of resistance R1 , R2 and R3 connected in series to a cell of potential diffrence V . As the resistors are in series then the current ' I ' through each resistor is same .

By ohm's law :-

• V1 = IR1

• V2 = IR2

• V3 = IR3

Total potential V = V1 + V2 + V3

=> V = IR1 + IR2 + IR3

Let Re be equivalent resistance .

V = IRe

Therefore :- IRe = IR1 + IR2 + IR3

»» Re = R1 + R2 + R3

Thus in series combination the equivalent resistance is simply the sum of individual resistor .


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