Physics-
General
Easy

Question

Following figure shows the path of an electron that passes through two regions containing uniform magnetic fields of magnitudes B subscript 1 end subscriptand B subscript 2 end subscript. It’s path in each region is a half circle, choose the correct option

  1. B subscript 1 end subscript is into the page and it is stronger than B subscript 2 end subscript    
  2. B subscript 1 end subscript is into the page and it is weaker than B subscript 2 end subscript    
  3. B subscript 1 end subscript is out of the page and it is weaker than B subscript 2 end subscript    
  4. B subscript 1 end subscript is out of the page and it is stronger than B subscript 2 end subscript    

The correct answer is: B subscript 1 end subscript is into the page and it is stronger than B subscript 2 end subscript


    Direction of field can be found using Fleming’s left hand rule and r proportional to fraction numerator 1 over denominator B end fraction

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