question_answer

  Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field in the room to your right side. What is the direction of magnetic field?                                       [NCERT]

Answer:

                  Yes, by changing current in coil A, some current will be induced in coil B. When current in coil A is changed, the magnetic field around A changes, so magnetic flux linked with nearby coil B changes. This produces induced current in coil B.