Are My Answers on Electromagnetism Correct?

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SUMMARY

This discussion focuses on the correctness of answers related to electromagnetism, specifically addressing questions about electric force, vector addition of gravitational and electric fields, and the concept of lines of force from positive charges. The participant, Jitendra, asserts that the electric force between two particles at a 1 cm separation can be zero, agrees that gravitational and electric fields can be added vectorially, and expresses uncertainty regarding the statement about 4π lines of force from unit positive charges. The community is invited to provide feedback on these answers.

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  • Understanding of basic electromagnetism concepts
  • Familiarity with vector addition in physics
  • Knowledge of electric fields and forces
  • Awareness of historical physics terminology and units
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  • Research the concept of electric force and its limits in classical physics
  • Explore vector addition of fields in electromagnetism
  • Study the significance of lines of force in electric field theory
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Students of physics, educators teaching electromagnetism, and anyone interested in clarifying concepts related to electric fields and forces.

AlbertEinstein
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I am posting some questions from my textbook.These questions are discussive in nature. However I shall also give answers to which I want that you people should judge my answers and put forward your comments and suggestions about their correctness.
Looking for help from you guys.

ps. the questions will be mainly from electromagnetism.
 
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Electric field

1. Is there any lower limit to the electric force between two particles placed at a separation of 1 cm ?My ans>> Yes, zero.

2.Can a gravitational field be added vectorially to an electric field to get a total field?My ans>>yes because they are simply two vectors

3.In some old text it is mentioned that 4 [tex]\pi[/tex] lines of force originate from each unit positive charge.Comment on the statement in view of the fact that 4 [tex]\pi[/tex] is not an integer.
My ans>>sorry I have no clue.

Looking forward for your comments.


jitendra

ps: it is not 4^pi, it is 4*pi
 
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