Class/Course - Medical Entrance

Subject - Physics

Chapter - Magnetic Effects of Current

Attention Medical Entrance standard Aspirants! Just Exam provide a platform to all students who want to make practice for various subject online. We prepare this platform on the base of CBSE. If you want to join our unlimited test series, then please write us at about your class/course

Dear User, Kindly login/register to view answer & explanation of each question.
Click here to Login/Sign Up.
Q.1 The magnetic field  at a distance r from a long wife carrying current i is 0.4 T. The magnetic field at a distance 2r is
  0.2 T
  0.8 T
  0.1 T
  1.6 T