Question

Consider the following two statements.
(A) Free electron density is different metals.
(B) Free electron density in a metal depends on temperature.
Seebeck effect is caused

• A. due to both A and B
• B. due to A but not due to B
• C. due to B but not due to A
• D. neither due to A nor due to B.

Answer 1

The correct option is A due to both A and B

Seebeck effect occurs in thermocouple which is a combination of two different metals. Since, free electron density is different for different metals and free electron density in a metal depends on temperature.