WAEC Physics 2014 Theory — Question 5
Question 5 of 22 from the West African Examinations Council (WAEC) Physics 2014 Theory paper, with the correct answer and a full explanation.
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5(a). Explain how a gas can be made to conduct electricity.
Model answer
A gas can be made to conduct electricity by ionizing it — through exposure to a strong electric field, heat, or radiation (e.g. X-rays, UV light), or by passing it through a flame. This ionization creates free electrons and ions in the gas that can carry electric current when a potential difference is applied.
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