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PHYSICS

JAMB 2019 - Question 27

Physics 2019 JAMB Past Questions - Question 27: A gas would serve as an electrical conductor under

Choose the correct answers from the options given.

A gas would serve as an electrical conductor under

A: Reduced pressure and reduced potential

B: increased magnetic field

C: reduced pressure and high current

D: exposure to visible light

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Correct Answer

Explanation

certain conditions. For example, when a gas is ionized, meaning its atoms or molecules have gained or lost electrons, it can become a conductor of electricity. This can happen in phenomena such as lightning, where the air becomes ionized and allows electricity to flow through it. Additionally, in some specialized applications, gases can be used in devices called gas discharge tubes, where the gas is ionized to create a conductive path for electricity.