An electrode is a conductor of electricity that can carry electric current into non-metals and other poor conductors of electricity. There are two types of electrode: an anode and cathode. The positively charged electrode is called anode and the negatively charged electrode is called cathode.
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Light-emitting diode
The passage of an electric current through a conducting liquid causes chemical reactions.The resulting effects are called chemical effects of currents.
The process of depositing a layer of any desired metal on another material by means of electricity is called electroplating. It is one of the mostcommon applications of chemical effects of electric current.
In 1800, a British chemist, William Nicholson (1753–1815), had shown that if electrodes were immersed in water, and a current was passed,bubbles of oxygen and hydrogen were produced. Oxygen bubbles formed on the electrode to the positive terminal of the battery and hydrogen bubbles formed on the other electrode.
Materials, which do not allow electric current to pass through them easily, are poor conductors of electricity. e.g Plastic , wood etc.
the materials, which allow electric current to pass through them, are good conductors of electricity. e. g Gold , silver etc.
