A gas would serve as an electrical conductor un... - JAMB Physics 2000 Question
A gas would serve as an electrical conductor under
A
reduced pressure and high current
B
increased magnetic field
C
reduced pressure and reduced potential
D
exposure to visible light
correct option: a
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.
But from Ohms Law, current is directly proportional to voltage. Thus high current presupposes high voltage.
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