A Tungsten Wire Is Used to Determine the Melting Point

question 28

Multiple Choice

A tungsten wire is used to determine the melting point of indium.The resistance of the tungsten wire is 6.000 Ω at 20°C and increases to 9.700 Ω as the indium starts to melt.α_tungsten = 4.50 × 10−³ (°C) −¹.What is the melting temperature of indium?

• A) 351°C
• B) 731°C
• C) 132°C
• D) 157°C

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Definitions:

Phallic

Pertains to the third stage in Freud's psychosexual development theory, focusing on the pleasure center around the genital area during the ages of 3 to 6 years.

Anal Character

A term from psychoanalytic theory referring to a personality type resulting from a fixation at the anal stage of development, characterized by orderliness, stubbornness, and a focus on control.

Oral Character

A personality type in psychoanalytic theory associated with issues in the oral stage of development, such as dependency.

Phallic Stage

In psychoanalytic theory, the stage of psychosexual development from about 4 to 7 years of age in which the physical focus of the libido is the penis (for boys) and its absence (for girls).