A +50-µC Point Charge Is 12 Cm from a -5 $\vec { E }$

question 64

Multiple Choice

A +5.0-µC point charge is 12 cm from a -5.0-µC point charge.What is the magnitude of the $\vec { E }$ field they produce at the point on the line connecting them where their electric potential (relative to infinity) is zero? (k = 1/4πε₀ = 9.0 × 10⁹ N ∙ m²/C²)

• A)0 N/C
• B)12.5 MN/C
• C)0.75 MN/C
• D)25 MN/C
• E)1.5 MN/C

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Definitions:

Transtheoretical Model

A theory of behavior change that assesses an individual's readiness to act on a new healthier behavior, and provides strategies to guide the individual through the stages of change.

Precontemplation

A stage in the Transtheoretical Model of Behavior Change where the individual is not yet considering change or unaware of the need to change.

Action

The process of doing something in order to achieve a specific goal or result.

Stages of Change

A concept in psychology that maps out the phases individuals go through as they modify behavior, ranging from precontemplation to maintenance.