Check sibling questions

Two concentric and coplanar circular loops P and Q have their radii in the ratio 2:3. Loop Q carries a current 9 A in the anticlockwise direction. For the magnetic field to be zero at the common centre, loop P must carry

 

  1. 3A in clockwise direction
  2. 9A in clockwise direction
  3. 6 A in anti-clockwise direction
  4. 6 A in the clockwise direction.

 

Answer:

(iv) 6A in the clockwise direction

  1. Physics Class 12
  2. Solutions to CBSE Sample Paper - Physics Class 12

About the Author

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo