Back EMF vs Reverse Currents: What's the Difference?

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SUMMARY

The discussion clarifies the distinctions between Back EMF, Reverse Current, Reverse Saturation Current, and Backfeeding within electrical engineering. It emphasizes that EMF (Electromotive Force) is fundamentally different from current. The conversation highlights the complexity of these terms, which span various subjects such as Motors, Magnetics, Semiconductors, and Power Distribution. Participants encourage more specific inquiries to facilitate deeper understanding.

PREREQUISITES
  • Understanding of Electromotive Force (EMF)
  • Basic knowledge of electrical currents and their types
  • Familiarity with electrical engineering concepts related to Motors and Magnetics
  • Awareness of semiconductor behavior and power distribution systems
NEXT STEPS
  • Research the principles of Back EMF in electric motors
  • Study the characteristics and implications of Reverse Current in circuits
  • Explore Reverse Saturation Current in semiconductor devices
  • Investigate Backfeeding in power distribution systems
USEFUL FOR

Electrical engineers, students in electrical engineering, and professionals involved in power systems and motor control will benefit from this discussion.

Benjamin_harsh
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Homework Statement
Are these 4 terms in electrical subject are same?
Relevant Equations
Are these 4 terms in electrical subject are same?
Is it Back EMF, Reverse Current, Reverse Saturation current, Backfeeding? If not, tell the difference.
 
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Well, EMF can't be the same as current. can it?
I have just googled these 4 terms and found definitions of them. (No, they are not the same.) Have you tried that?
 
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No. Could you ask a more specific question? These terms cover a wide range of subjects in EE as I interpret them; Motors/Magnetics, Semiconductors, Power Distribution... It just too hard to describe everything in one post.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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