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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
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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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Explanation Video

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