A simple voltaic cell was invented by Alessandro Volta in the year 1800. It was the first device that could create a constant potential difference between two plates with the help of chemical energy. Concept: Direction of the Electric Current - Conventional and Electronic Flow.
A voltaic cell is an electrochemical cell that produces electrical energy using a chemical reaction. The reactions to oxidation and reduction are divided into half-cell compartments.
Principle of Galvanic (Voltaic) Cell:-
Electric work done by a galvanic cell is mainly due to the Gibbs energy of spontaneous redox reaction in the voltaic cell. It generally consists of two half cells and a salt bridge. Each half cell further consists of a metallic electrode dipped into an electrolyte. These two half-cells are connected to a voltmeter and a switch externally with the help of metallic wires. In some cases, when both the electrodes are dipped in the same electrolyte, a salt bridge is not required.
Parts of Galvanic Cell :-
Anode – Oxidation occurs at this electrode.
Cathode – Reduction occurs at this electrode.
Salt bridge – Contains electrolytes which are required to complete the circuit in a galvanic cell.
Half-cells – reduction and oxidation reactions are separated into compartments.
External circuit – Conducts the flow of electrons between electrodes
Load – A part of the circuit utilizes the electron to flow to perform its function.
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Answer:
A simple voltaic cell was invented by Alessandro Volta in the year 1800. It was the first device that could create a constant potential difference between two plates with the help of chemical energy. Concept: Direction of the Electric Current - Conventional and Electronic Flow.
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Principle of Galvanic (Voltaic) Cell:-
Parts of Galvanic Cell :-
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