question_answer

    AB is a current-carrying conductor in the plane of the paper as shown in figure. What are the directions of magnetic fields produced by it at points P and Q? Given  when will the strength of the magnetic field be larger?  

Answer:

                  According to Fleming's right-hand rule magnetic field at P is into the plane of paper and at Q it is out the plane of paper. The strength of the magnetic field at Q will be larger as strength of the field    (1+1)