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10.1 Circuits, charge and current

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Question 3
48%

An electrochemical cell used in a blood glucose monitor operates with a constant current of 15 mA during a single test cycle.

Calculate the total charge flow, in coulombs, through the sensor during a test cycle lasting 8.5 minutes8.5\text{ minutes}8.5 minutes.

Use the equation:

charge flow=current×time \text{charge flow} = \text{current} \times \text{time} charge flow=current×time Q=I×t Q = I \times t Q=I×t
[2]
Markscheme

10.1 Circuits, charge and current Questions

  1. GCSE
  2. /Physics
  3. /10.1 Circuits, charge and current

32 exam-style questions on Edexcel GCSE Physics 10.1 Circuits, charge and current, covering 10.1.1 Structure of the atom, 10.1.2 Circuit diagrams and symbols, 10.1.3 Series and parallel circuits, 10.1.4 Potential difference and voltmeters, 10.1.5 Energy transferred, charge and potential difference, and 10.1.6 Current, ammeters and charge flow. Each one has a worked solution and a mark scheme showing where the marks go.

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