Electrons Traveling at a Speed of V₀ = 3 ×

question 30

Multiple Choice

Electrons traveling at a speed of v₀ = 3 × 10⁷ m/s pass through the deflection plates. The electric field between the plates is E = 5000 V/m and spans a distance of x₁ = 5 cm. The electrons then travel a further distance of x₂ = 40 cm along the x-axis. In which direction should the magnetic field be applied so that the electron lands undeflected at a?

• A) 1
• B) 2
• C) 3
• D) 4
• E) 5

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Definitions:

Book Gills

Respiratory organs found in horseshoe crabs and some arachnids, consisting of leaf-like structures stacked on top of each other.

Earthworms

Terrestrial invertebrates that belong to the phylum Annelida, known for their role in aerating and enriching soil.

Setae

Stiff, hair-like structures on the outer surface of animals, notably invertebrates, used for sensation, locomotion, or attachment to surfaces.

Aortic Arches

The series of curved blood vessels that diverge from the top of the heart; vital in the arterial blood circulation system.