A Velocity Selector Uses a Fixed Electric Field of Magnitude

question 55

Multiple Choice

A velocity selector uses a fixed electric field of magnitude E and the magnetic field is varied to select particles of various energies. If a magnetic field of magnitude B is used to select a particle of a certain energy and mass, what magnitude of magnetic field is needed to select a particle of equal mass but twice the energy?

• A) 0.50 B
• B) 1.4 B
• C) 2.0 B
• D) 0.71 B
• E) 1.7 B

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Definitions:

Stimulus Response

A concept in behaviorism suggesting that a particular stimulus will elicit a specific response; often applied in sales and marketing strategies.

Group Sales Presentation

A marketing strategy where a presentation about a product or service is made to a group of potential clients or customers simultaneously.

Group Member

An individual who belongs to a specific group or team, contributing to the collective goals, activities, and dynamics of the group.

Problem-solution

A method of structuring sales presentations or marketing communications by identifying a problem and proposing a solution that addresses it.