0

Guest

Courses New

a deflection magnetometer is adjusted in the usual way.when a magnetometer is introduced,the deflection observed is @(theta),and the period of oscillation of the needle in the mangetometer is T.when the magnet is removed the period of oscillations is T0.the relation between Tand T0 is A)T^2=T0^2 Cos @


a deflection magnetometer is adjusted in the usual way.when a magnetometer is introduced,the deflection observed is  @(theta),and the period of oscillation of the needle in the mangetometer is T.when the magnet is removed the period of oscillations is T0.the relation between Tand T0 is       A)T^2=T0^2 Cos @



Grade:10

1 Answers

ROSHAN MUJEEB
askIITians Faculty 829 Points
2 years ago
When deflection magnetometer is rest in usual way the field due to magnet (F) and horizontal component (H) of earth's field are perpendicular to each other. In this setting
T=2πIMF2+H2−−−−−−−√−−−−−−−−−−−−√...(i)T=2πIMF2+H2...(i)
After removing the magnet
T0=2πIMH−−−−−√...(ii)T0=2πIMH...(ii)
We know,FH=tanθFH=tanθ
Dividing (i) by (ii), we get,
TT0=HF−−√2+H2−−−−−−−−−−√TT0=HF2+H2
=HH2tan2θ+H2−−−−−−−−−−−−√−−−−−−−−−−−−−−−√=HHsec2θ−−−−−√−−−−−−−−√=cosθ−−−−√=HH2tan2θ+H2=HHsec2θ=cosθ
⇒T2T20=cosθ∴T2=T20cosθ

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Magnetism

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More