A gas would serve as an electrical conductor under
...A gas would serve as an electrical conductor under
reduced pressure and high current
increased magnetic field
reduced pressure and reduced potential
exposure to visible light
Correct answer is 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.
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Iron at 30oC feels colder to the hand than wood at 28oC because...