wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A deflection magnetometer is placed with its arms in north-south direction. How and where should a short magnet having MBH=40Am2T1 be placed so that the needle can stay in any position ?

Open in App
Solution

Given, MBH=40Am2T

Since the magnet is short l can be neglected

So, MBH=4πμ0,d32=40

d3=40×4π×107×20.75

= 8×106

d= 2×102m = 2 cm

with the north pole pointing towards south.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Materials Kept in Magnetic Field
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon