Question

Figure (1) and figure (2) both are showing the variation of resistivity ($r_{2}$) with temperature (T) for some materials. Identify the type of these materials.

• A. Conductor and semiconductors
• B. Conductor and Insulator
• C. Insulator and semiconductor
• D. Both are conductors

Answer 1

Answer: (A)

Conductor and semiconductors

Answer 2

: In conductors due to increase in temperature the resistivity increases and in semiconductors it decreases exponentially.