No. Its electrical conductivity increases because the positive and negative ions of the salt dissociate in the water.
The electrical conductivity of different materials is affected differently when dissolved in water. For example, anhydrous Sodium Chloride changes from a non-conductor to a one when dissolved.
Most metallic chlorides are soluble in water.
Essentially ALL the metallic nitrates are soluble, even mercurous nitrate, perhaps the only mercurous salt that is soluble.
Metallic bonds are not soluble in water.
barium sulphate
Not soluble in water (probably only a slow reaction), soluble in acids.
lithium sulphate
Insoluble. Metallic sulfides are very poorly soluble in water.
For example, metallic uranium is soluble in nitric acid.
It is Lead chloride.
Metallic sodium reacts vigorously with ethanol to form sodium ethanoate.
By increasing diameter of the wire , reducing length and using a wire of good quality , we can increase the conductivity.