- #1
giladsof
- 13
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Which Way Is V? Understanding the Relationship Between Electricity and Magnetism
- Thread starter giladsof
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SUMMARY
The discussion focuses on the relationship between electricity and magnetism, specifically in the context of calculating the induced current when a rod moves within a magnetic field. It is established that the induced current is zero when the rod is at equilibrium and typically negligible compared to the supplied current. The primary consideration is the force exerted by the magnetic field on the rod due to the existing current (I), without the need for induction. The dilemma arises in determining the direction of voltage (V) related to the movement of the rod versus the current.
PREREQUISITES- Understanding of electromagnetic principles, particularly Faraday's Law of Induction
- Familiarity with the right-hand rule for determining force direction in magnetic fields
- Basic knowledge of electric circuits and current flow
- Concept of equilibrium in physical systems
- Study Faraday's Law of Induction in detail
- Learn about the right-hand rule and its applications in electromagnetism
- Explore the dynamics of electric circuits, focusing on current and voltage relationships
- Investigate the concept of equilibrium in mechanical systems and its implications in electromagnetism
Students of physics, electrical engineers, and anyone interested in the principles of electromagnetism and their applications in real-world scenarios.
- #2
ideasrule
Homework Helper
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You're trying to calculate the current induced by the movement of the rod. That current is 0 when the rod is at equilibrium, because the rod wouldn't be moving. Even when it's not at equilibrium, the induced current is usually so small as to be negligible compared to the current supplied by the power source.
So you just need to consider the force applied by the magnetic field on the rod, due to the existing current I. There's no need to consider induction.
So you just need to consider the force applied by the magnetic field on the rod, due to the existing current I. There's no need to consider induction.
- #3
giladsof
- 13
- 0
OK... As I try your idea I get into the following dilemma: which way is V? The movement of the rod or the movement of the current?
Unfortunately neither one of those options creates a force upwards using the right hand rule... \:
Unfortunately neither one of those options creates a force upwards using the right hand rule... \: