A Certain Material Has a Resistivity of 7 $\Omega$ M at Room Temperature, and Its Resistivity Increases as the .M

question 10

Multiple Choice

A certain material has a resistivity of 7.8 *10³ $\Omega$ .m at room temperature, and its resistivity increases as the temperature is raised by 100 ° C.The material is most likely:

• A)a metal
• B)a pure semiconductor
• C)a heavily doped semiconductor
• D)an insulator
• E)none of the above

---

Definitions:

Endangered Elephants

Elephant species that are at risk of extinction due to factors such as habitat loss, poaching, and human-wildlife conflict.

Private Goods

Goods that are excludable and rival in consumption, meaning one person's consumption prevents others from enjoying it.

Common Resource

A resource like air or water that is available to all but susceptible to overuse and depletion because it is not excludable.

Negative Externalities

These are unintended and adverse effects of a product or economic activity that impact third parties who are not directly involved in the activity.