Question

What flows in the internal circuit of a galvanic cell?

Answer 1

In the simplest terms, a galvanic cell is a device that performs both oxidation and reduction reactions at the same time. These processes transform chemical energy into electrical energy, which can be employed for a variety of commercial applications.

Complete answer:
To make a galvanic cell, two electrodes would be great for the cell. The cathode, a positively charged electrode, will be one of these electrodes, while the anode, a negatively charged electrode, will be the other.
The galvanic cell's two fundamental components will be these two electrodes. The reduction half-reaction should happen at the cathode, whereas the oxidation half-reaction should happen at the anode. Therefore, ions flow in the inner circuit or the internal circuit of the galvanic cell.

Additional Information:-
The capacity to separate the flow of electrons in the process of oxidation and reduction by producing a half reaction and connecting each with a wire so that a conduit for electron flow can be generated through such wire is used in a galvanic cell. A current is a term that describes the passage of electrons. A current of this type can be made to flow through a wire to complete a circuit and obtain an output in any device, such as a television or a watch.

Note:
It’s worth mentioning that a salt bridge is a device that connects the oxidation and reduction halves of an electrochemical cell using a weak electrolyte. A salt bridge's primary role is to aid in the maintenance of electrical neutrality within the internal circuit. It also aids in keeping the cell from reaching equilibrium with its reaction.