Question

When a very small amount of higher conducting metal is added to a conductor, its conductivity will
1. increase
2. decrease
3. remain the same
4. increase or decrease depending on the impurity

Answer 1

Correct Answer - Option 2 : decrease

• When a very small amount of higher conducting metal is added to a conductor, its conductivity will decrease.
• Alloying of elements increases the resistivity of the metal to which they are added.
• It does not depend on whether the added metal has higher conductivity or, lower conductivity than the metal to which it is added.