Category: 4. Batteries

The following are the important terms related to an electric cell: Fig. 4.1  Terminal voltage of a cell of no-lead and at load (a) Cell with internal resistance of no-load (b) Cell at load When load is applied, it delivers current I to the external (load) resistor R as shown in Figure 4.1(b). The potential difference across the terminals reduces to V volts…

The following are the important terms related to an electric cell: Fig. 4.1  Terminal voltage of a cell of no-lead and at load (a) Cell with internal resistance of no-load (b) Cell at load When load is applied, it delivers current I to the external (load) resistor R as shown in Figure 4.1(b). The potential difference across the terminals reduces to V volts…

An electric device, such as battery, that converts chemical energy into electrical energy is known as electric cell. 4.2.1  Forming of a Cell An electric cell essentially consists of the following: When the two electrodes are immersed in a suitable electrolyte, different chemical actions take place on them and a potential difference is established between them.…

Current not only flows through metallic conductors but also flows though some liquids called electrolytes.1 These liquids provide oppositely charged ions, and the conduction is due to the movement of these ions (not due to the movement of free electrons). The flow of current through electrolyte leads to chemical changes. Therefore, in this process, electrical energy…