Question about the force exerted by a uniform electric field on a dipole

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Homework Help Overview

The discussion revolves around the forces exerted by a uniform electric field on an electric dipole, focusing on the interpretation of the term "force" in the context of the problem.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the implications of the term "force" being singular and discuss how the forces on the dipole's charges relate to the electric field, including considerations of net force and torque.

Discussion Status

Some participants have provided insights regarding the relationship between the forces on the dipole and the electric field, while others are questioning the interpretation of the problem's wording. There is no explicit consensus on the correct interpretation or answer.

Contextual Notes

Participants note that the forces acting on the dipole's charges may add up to zero, which raises questions about the net force and the role of torque in the scenario.

hidemi
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Homework Statement
The force exerted by a uniform electric field on a dipole is:
A. parallel to the dipole moment
B. perpendicular to the dipole moment
C. parallel to the electric field
D. perpendicular to the electric field
E. none of the above

The answer is E.
Relevant Equations
F = qE
I think the answe should be C as shown in the attachment.
 

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C:The forces acting on charges are parallel to the electric field.
E:They add up to zero though torque acts on the dipole.
If you understand them you do not have to worry about the "right" answer.
 
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It asks for "force", singular, so take that to mean net force.
 
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Thank you all.
 
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