Question

Electrolytic conduction differs from metallic conduction. In case of metallic conduction?

• A. The resistance increases with increasing temperature
• B. The resistance decreases with increasing temperature
• C. The flow of current does not generate heat
• D. The resistance is independent of the length of electrolytic conductor.

Answer 1

The correct option is A The resistance increases with increasing temperature

In case of metals,resistance increases on increase in Temp. because length of material increase and since $R\infty \left(l/A\right)$,hence 'R' increases where as in electrolyte, resistance decreases because molecule now have more thermal energy conducts fastly.