anonymous
  • anonymous
How does EM induction and the motor effect work?
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
(1) How is the Lorentz force law derived? (2) For the motor effect, is a fair explanation that the moving electrons experience a force downwards due to a magnetic force, and push the wire down with them due to EM repulsion between them and the metal atoms? (3) For EM induction, why is there a dB/dt term if there is not in the Lorentz force law? I am confused intuitively about it; I understand what happens, but not why above the level of rote.
masumanwar
  • masumanwar
induced emf was first suggested by Michel Faraday and by applying circuit for close loop using inductor and applying dc or ac voltage we can measure induced emf
shamim
  • shamim
lorentz force law is \[F=qE+q(v \times B)\]

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shamim
  • shamim
here q= charge F=force and its a vector E=electric field and its a vector v=velocity of charge q and its a vector B= magnetic field and its vector
shamim
  • shamim
if in any place both electric field E and magnetic field B present then this lorentz force law will b applied
shamim
  • shamim
Lorentz force law can b writen as\[F=q(E+v \times B)\]
shamim
  • shamim
ur question 2 is not clear to me
shamim
  • shamim
now i wanna talk abt ur question 3
anonymous
  • anonymous
That's not the derivation, it's just a statement of the law.
shamim
  • shamim
ya

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