Saved Bookmarks
| 1. |
A steady current I flows along an infinitely long hollow cylindrical conductor of radius R. This cylinder is placed coaxially inside an infinite solenoid of radius 2R. The solenoid has n turns per unit length and carries a steady current I. Consider a point P at a distance r from the common axis. The correct statement(s) is (are) (A) In the region 0 < r < R, the magnetic field is non-zero (B) In the region R < r < 2R, the magnetic field is along the common axis. (C) In the region R < r < 2R, the magnetic field is tangential to the circle of radius r, centered on the axis. (D) In the region r > 2R, the magnetic field is non-zero. |
|
Answer» (A) In the region 0 < r < R, the magnetic field is non-zero (D) In the region r > 2R, the magnetic field is non-zero. Due to field of solenoid is non zero in region 0 < r < R and non zero in region r>2R due to conductor. |
|