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

Examine the effects of task difficulty and individual differences on performance.

Understand the concept of need for achievement and its significance in motivation.

Explain the role of stimulus and arousal motives in seeking stimulation and maintaining effort.

Acknowledge the implications of the Yerkes-Dodson Law on performing complex tasks and simple tasks under varying arousal levels.

---

Definitions:

Required Return

The minimum expected yield by investors to compensate for the risk of an investment.

Security Market Line

A representation in financial markets that depicts the relationship between the risk of an asset and its expected return.

Expected Inflation Rate

The anticipated rate at which the general level of prices for goods and services will rise over a period of time.

Risk Averse

The preference to avoid uncertainty, referring to the behavior of investors who prefer lower returns with known risks over higher returns with unknown risks.