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I need help with In which of the following devices , the eddy current effect is not used ?

In which of the following devices , the eddy current  effect is not used ? 

 

  • Option 1)

    induction furnace 

  • Option 2)

    magnetic braking in train 

  • Option 3)

    electromagnet 

  • Option 4)

    electric heater 

Answers (1)
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electric heater 


Option 1)

induction furnace 

Option 2)

magnetic braking in train 

Option 3)

electromagnet 

Option 4)

electric heater 

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