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nouna positively charged electrode by which electrons leave an electrical deviceOpposite:
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nounthe negatively charged terminal of a voltaic cell or storage battery that supplies currentOpposite:
Definition that contains anode
- grid an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube
- crt a 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
- electrophoresis the 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
- triode a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which makes amplification possible
- cathode-ray tube a 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
- mercury cell a primary cell consisting of a zinc anode and a cathode of mercury oxide and an electrolyte of potassium hydroxide
- nickel-iron accumulator a storage battery having a nickel oxide cathode and an iron anode with an electrolyte of potassium hydroxide; each cell gives about 1.2 volts
- magnetron a 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
- cataphoresis the 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
- nickel-iron battery a storage battery having a nickel oxide cathode and an iron anode with an electrolyte of potassium hydroxide; each cell gives about 1.2 volts