The Resistance of a Platinum Wire Is to Be Calibrated

question 11

Multiple Choice

The resistance of a platinum wire is to be calibrated for low-temperature work.A platinum wire with resistance 1.5 Ω at 30°C is immersed in liquid nitrogen at 93 K (−180°C) .If the temperature response of the platinum wire is linear,what is the expected resistance of the platinum wire at −180°C? [α_platinum = 3.92 × 10−³ (°C) −¹].

• A)0.265 Ω
• B)2.38 Ω
• C)2.73 Ω
• D)8.48 Ω
• E)0.618 Ω

---

Definitions:

Wages

The compensation received by employees for their labor, typically expressed as an hourly rate or annual salary.

Products

Goods or services offered by businesses to consumers in exchange for payment.

Prices

The amount of money required to purchase a good or service, determined by factors like supply and demand in the market.

Ownership

The legal right or title to an asset or property, implying control and responsibility over it.