If the Magnetic Field from a Current-Carrying Long Straight Wire

question 14

Multiple Choice

If the magnetic field from a current-carrying long straight wire has a magnitude B₀ at a distance d,what is the magnitude of the field at a distance 2d?

• A) also B₀
• B) 0.707 B₀
• C) 0.693 B₀
• D) B₀/2
• E) B₀/4

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Definitions:

Excessive Sleep

A condition characterized by sleeping for extended hours, typically more than what is considered necessary for normal functioning, which can indicate underlying health issues.

Hypersomnolence Disorder

A sleep disorder characterized by excessive sleepiness despite adequate or prolonged nighttime sleep, often resulting in significant distress or impairment in daytime functioning.

Mood Disorders

A category of psychiatric disorders characterized by persistent disturbances in mood or emotional tone.

Prevalence

Proportion of the population who have a specific disorder at a given point or period in time.