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Cambridge IGCSE Physics practice

What is the effect of adding more resistors in parallel?

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Show answerSeries and parallel circuits revisionRevise the key idea

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MCQ

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cambridge_mcq

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Series and parallel circuits

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What is the effect of adding more resistors in parallel?.

  1. A.Total resistance increases
  2. B.Total resistance decreases
  3. C.Total current decreases
  4. D.Total current remains the same

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Paper 4 structured question: Series and parallel circuits

Paper 4Theory (Extended)2 marks

Description

Circuit Analysis

Consider a parallel circuit with three branches. The total current entering the junction is 12 A. If one branch carries 4 A and another carries 5 A, calculate the current in the third branch.

  1. a

    State the current in the third branch.

    Aim for approximately 2 distinct marking points.

    [2]