Question

If a magnet of pole strength m is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will be

• A. $\frac{m}{4}$
  
• B. $\frac{m}{2}$
  
• C. $\frac{m}{8}$
  
• D. $4m$

Answer 1

The correct option is B $\frac{m}{2}$


For each part $m^{\prime }=\frac{m}{2}$