Question

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Solved examples of resistors in parallel
Example 1: Resistors having resistances of 15 ohms,20ohms and 10ohms are connected in
parallel. What is the effective resistance in the circuit?
Given : R1 = 15ohms, R2 = 20ohms and R3 = 10ohms
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Answer 1

Answer:

R eff= 1/R 1 + 1/R 2+1/R 3+1/R4+........+1/Rn

R eff=1/15+1/20+1/10x(1/2)=13/60

R eff=60/13

==4.615Ω