A gas would serve as an electrical conductor under?

By: |Published on: Nov 16|Categories: Physics JAMB| 0 comments

A. reduced pressure and high current
B. increased magnetic field
C. reduced pressure and reduced potential
D. exposure to visible light

Correct Answer:

Option A – reduced pressure and high current

Explanation

In general, gases conduct electricity under reduced pressure and high voltage/potential.

But from Ohms Law, current is directly proportional to voltage. Thus high current presupposes high voltage.

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