Discussion Overview
The discussion revolves around the implications of a toroidal solenoid powered by a sinusoidal voltage and whether it leads to a violation of Newton's third law. Participants explore the interaction between the solenoid and a conductive ball placed at its center, particularly focusing on the behavior of electric fields and forces in this context.
Discussion Character
- Debate/contested
- Technical explanation
- Conceptual clarification
Main Points Raised
- One participant claims that the setup leads to a sourceless electric field, resulting in a force acting on the conductive ball without a corresponding force on the solenoid, suggesting a violation of Newton's third law.
- Another participant argues that Newton's third law is fundamentally tied to the conservation of momentum, which is preserved in Maxwell's equations, implying that the initial claim is incorrect.
- A later reply reiterates the original claim of a violation, asserting that the example demonstrates this in agreement with Maxwell's equations.
- One participant emphasizes that the oscillating charge on the ball generates its own changing electric and magnetic fields that interact with the solenoid, potentially complicating the initial argument.
- Another participant challenges the relevance of the details of the example, insisting that momentum conservation holds regardless of the specifics presented.
- Concerns are raised about the momentum carried by electromagnetic waves, with one participant asserting that the total momentum is zero due to system symmetry, while another counters that this is a well-established fact supported by experimental observation.
- One participant suggests that if a valid experiment demonstrating a violation of the third law exists, it should be published, indicating skepticism towards the claims made in the discussion.
Areas of Agreement / Disagreement
Participants express competing views on whether the scenario violates Newton's third law, with some asserting a violation and others defending the conservation of momentum as described by Maxwell's equations. The discussion remains unresolved with multiple perspectives presented.
Contextual Notes
Participants reference the conservation of momentum in electromagnetic theory and the implications of symmetry in the system, but there are unresolved assumptions regarding the behavior of the electric and magnetic fields in the proposed scenario.