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Charge and current

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Question 1
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An electrical circuit contains an aqueous electrolyte solution connected in series with a low-pressure gas discharge tube.

Which of the following correctly identifies the mobile charge carriers responsible for the electrical current in each of these two components?

A

In the electrolyte: positive and negative ions; in the gas discharge tube: positive ions and electrons

B

In the electrolyte: free electrons and negative ions; in the gas discharge tube: electrons and holes

C

In the electrolyte: positive and negative ions; in the gas discharge tube: free electrons only

D

In the electrolyte: free electrons only; in the gas discharge tube: positive and negative ions

Markscheme

Charge and current Questions

  1. A Level
  2. /Physics
  3. /Charge and current

5 exam-style questions on OCR A A Level Physics Charge and current, covering Charge and Mean drift velocity. Each one has a worked solution and a mark scheme showing where the marks go.

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