A. total number of magnetic lines of force surrounding a magnet
B. number of magnetic lines of force per unit area normal to the magnetic field
C. strength of the magnetic field surrounding a current-carrying conductor
D. magnetic force exerted on a unit magnetic pole
Correct Answer:
Option B – number of magnetic lines of force per unit area normal to the magnetic field
![A piece of cork floats in a liquid. What fraction of its volume will be immersed in the liquid? [Density of the cork = 0.25 x 10³kgm−³, Density of the liquid = 1.25 x 10³kgm−³] past-questions-and-answers](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers-150x150.jpg)
