Guest

A bar magnetof length10 cm and pole strength 20 A-m is deflected through30 degrees from the magnetic meridian.If earth's horizontal component of field is 320/4pie A/m.The moment of the deflecting couple is

A bar magnetof length10 cm and pole strength 20 A-m is deflected through30 degrees from the magnetic meridian.If earth's horizontal component of field is 320/4pie A/m.The moment of the deflecting couple is

Grade:12

1 Answers

ROSHAN MUJEEB
askIITians Faculty 833 Points
3 years ago

It is given that length of bar magnet L=10cm=0.1m
Pole strength m=20A−m
earths horizontal component field B
H

=

320

Am
−1

torqueτ=MBsinθ
τ=mlBsinθ
τ=20×0.1×

320

×sin30
τ=25.4Nm

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free