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cathode's opposite anode
motion of charged particles in a colloid under the influence of an electric field; particles with a positive charge go to the cathode and negative to the anode cataphoresis , dielectrolysis , electrophoresis , ionophoresis
beam of electrons emitted by the cathode of an electrical discharge tube cathode ray
vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen cathode-ray tube , CRT
electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube control grid , grid
English chemist and physicist; discovered thallium; invented the radiometer and studied cathode rays (1832-1919) Crookes , Sir William Crookes , William Crookes
gas-discharge tube with a hot cathode; used in stroboscopes glow lamp
gas-discharge tube consisting of a cold cathode and a diode in a tube filled with gas; the color of the glow depends on the particular gas glow tube
German physicist who studied cathode rays (1862-1947) Lenard , Philipp Lenard
diode vacuum tube in which the flow of electrons from a central cathode to a cylindrical anode is controlled by crossed magnetic and electric fields; used mainly in microwave oscillators magnetron
primary cell consisting of a zinc anode and a cathode of mercury oxide and an electrolyte of potassium hydroxide mercury cell
rechargeable battery with a nickel cathode and a cadmium anode; often used in emergency systems because of its low discharge rate when not in use nicad , nickel-cadmium accumulator
storage battery having a nickel oxide cathode and an iron anode with an electrolyte of potassium hydroxide; each cell gives about 1.2 volts nickel-iron accumulator , nickel-iron battery
cathode that emits electrons when illuminated photocathode
thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which making amplification possible triode
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