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In a discharge tube, most of the gas is pumped out so that electricity is...

Physics
JAMB 2010

In a discharge tube, most of the gas is pumped out so that electricity is conducted at?

  • A. low voltage
  • B. steady voltage
  • C. high pressure
  • D. low pressure
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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Correct Answer: Option D
Explanation

pumping out of the gas in the discharge tube reduces the pressure inside the tube, therefore, electricity is conducted at low pressure

There is an explanation video available below.

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Go back to Phy classroom

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Explanation Video

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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts