Vacuum tubes are non-ohmic devices
The transistor replaced the vacuum tube, allowing radios to get much smaller and portable.
Sound cannot travel through vacuum, but unless there is sufficient insulation, sound might travel through the material the tube is made of.
there must be vacuum in the mercury barometer because if air enters the tube the barmeter would become faulty as air pressure will change.
This beam of electrons is emited by the cathode under voltage difference.
Lee De Forest invented vacuum tubes.
the vacuum tube
define the nonohmic metarials and give examples to them
A vacuum tube does not contain any gases. All the gases are evacuated from the tube and only vacuum is left.
A vacuum tube is simply a tube with no oxygen nor carbon dioxide in it (aka no air).
Millman's theorem
no.....thermistors are not ohmic.
who made the vacuum tubes
The transistor replaced the vacuum tube, allowing radios to get much smaller and portable.
Tungsten
Kilobytes and vacuum tubes are not in the same category. At best, a twin triode vacuum tube is a single flip-flop and can hold 1 bit of information, making a vacuum tube about 0.000122 of a kilobyte.
an electron tube containing a near-vacuum that allows the free passage of electric current.
ohmic conductor does obey ohm 's law. non ohmic conductor does not obey ohm's law.