A Nichrome Wire and an Aluminum Wire,each with the Same $\rho$

question 26

Multiple Choice

A nichrome wire and an aluminum wire,each with the same initial resistance,have the same change in resistance when heated separately.( $\rho$ _Al = 2.82 *10 ^{- 8} $\Omega$ .m; $\alpha$ _Al = 3.9 *10 ^{- 3} / $\degree$ C; $\rho$ _nichrome = 1.50* 10 ^{- 6} $\Omega$ .m; $\alpha$ _nichrome = 0.40 * 10 ^{- 3} / $\degree$ C. ) The ratio of the temperature change of the nichrome wire to the temperature change of the aluminum wire is

• A)0.019.
• B)0.10.
• C)0.18.
• D)9.8.
• E)53.

---

Definitions:

Marginal Revenue Product

The additional revenue generated from employing one more unit of a resource, assuming all else constant.

Labor Supply Curves

Graphical representations showing the relationship between the wages offered by employers and the amount of labor workers are willing to supply at those wages.

Marginal Revenue Product

The extra income obtained by utilizing an additional unit of a resource.

Marginal Revenue Product

The additional revenue generated from using one more unit of a resource or input in the production process.