Ask Question
18 December, 21:30

When there is a large difference in two resistor's sizes, what useful approximations can be used when considering their series and parallel combinations? (This is a handy thing to know in circuit design!)

+3
Answers (1)
  1. 18 December, 21:56
    0
    Series circuit approximation = R1 >> R2 then R2 ≈ 0

    Parallel circuit approximation = R1 << R2 then R2 ≈ 0

    Explanation:

    in a series circuit, if there is a large difference between two resistors then we can omit the resistor which has low resistance because the higher value resistor dominates.

    R1 >> R2 then R2 ≈ 0

    in a parallel circuit, if there is a large difference between two resistors then we can omit the resistor which has high resistance because the lower value resistor dominates.

    R1 << R2 then R2 ≈ 0
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “When there is a large difference in two resistor's sizes, what useful approximations can be used when considering their series and parallel ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers