Physics-
General
Easy

Question

The magnitude of the earth’s magnetic field at a place is B subscript 0 end subscript and the angle of dip is delta. A horizontal conductor of length l lying magnetic north-south moves eastwards with a velocityv. The emf induced across the conductor is

  1. Zero   
  2. B subscript 0 end subscript l v s i n delta  
  3. B subscript 0 end subscript l v  
  4. B subscript 0 end subscript l v blank c o s delta  

The correct answer is: B subscript 0 end subscript l v s i n delta

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