First slide
Magnetic properties of matter
Question

A short bar magnet of magnetic moment  20Am2 has a cross sectional area of  1.5×10-4m2 . If the intensity of magnetisation of the magnet is  105A/m , the length of the magnet is

Moderate
Solution

Formula : Intensity of magnetization I=MV

                           I=MALGiven : M=20Am2A=1.5×10-4m2l=105A/mI=MAl=201.5×10-4×105=43=1.33 m

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App