Dilute acid, zinc and copper make an electric cell | Electricity | Physics

Описание к видео Dilute acid, zinc and copper make an electric cell | Electricity | Physics

The electronic devices we are surrounded by, all run on batteries. One of the earliest batteries is a voltaic cell that is created by placing two different kids of metallic electrodes in a diluted acid solution. Such cells are called wet cells or wet batteries, and are used today mainly in cars and uninterrupted power supplies (UPS). Here we make such a cell by using a zinc plate, a copper plate and use hydrochloric acid as the electrolyte. The zinc plate loses electrons to the copper plate, setting up a current in the circuit and making the bulb glow. By and large, the modern batteries are dry cells where the electrolyte is a paste.

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