Why is electricity more dangerous in wet weather

All cells comprise half-cells, electrodes and a conductive electrolytethe latter component separates the electrodes and conducts ions. It is usually, although not always, a liquid and normally has an ionic substance dissolved within it, the solid dissociating in solution to form ions. Aqueous electrolytes are a favourite choice because the high dielectric constant e of water imparts a high ionic conductivity k to the solution. 

Sometimes electrochemists are forced to construct electrochemical cells without water, e.g. if the analyte is water sensitive or merely insoluble. In these cases, we construct the cell with an organic solvent, the usual choice being the liquids acetonitrile, propylene carbonate (I), N,/V-dirrielhylformamide (DMF) or di-methylsulphoxide (DMSO), each of which is quite polar because of its high dielectric constant e. 

In some experiments, we need to enhance the ionic conductivity of a solution, so we add an additional ionic compound to it. Rather confusingly, we call both the compound and the resultant solution an electrolyte . 

Currents conduct through an electrolyte by means of ions. 

Ultimately, the word ion derives from the Greek eimi to go, implying the arrival of someone or something We get the English word aim from this root. 

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