Nichrome Wire, Often Used for Heating Elements, Has Resistivity of 1.0

question 50

Multiple Choice

Nichrome wire, often used for heating elements, has resistivity of 1.0 × 10^-6 Ω ∙ m at room temperature. What length of No. 30 wire (of diameter 0.250 mm) is needed to wind a resistor that has 50 ohms at room temperature?

• A) 3.66 m
• B) 2.45 m
• C) 0.61 m
• D) 6.54 m
• E) 22.4 m

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Definitions:

Transference

A psychoanalytic concept where feelings, desires, and expectations of one person are redirected and applied to another person, often in a therapeutic setting.

Unconscious Material

Content of the mind that is outside of conscious awareness, including desires, thoughts, and memories, which can influence behavior and perceptions.

Ego

In psychoanalysis, it represents the part of the personality that mediates between the conscious and unconscious aspects of oneself and is responsible for reality testing and a sense of personal identity.

Id's Drives

Fundamental, unconscious urges and desires, often related to survival and pleasure, according to Freudian psychoanalytic theory.