2346 Views

A metallic ring with a cut is held horizintally and a magnet is allowed to fall vertically through the ring,, then why acceleration of this


Rohan kumar 6th Feb, 2019
Answers (2)
masteranshu27 7th Feb, 2019
When a magnet is permitted to fall verically along the axis of the metallic ring  (which is held horizontally), the upper face of the ring will develop the same polarity as that of the pole of the magnet facing the ring. This is an attempt to oppose the approaching magnet via repulsion (in accordance with Lenz's Law). Hence acceleration reduces and is less than 'g'.


If coil is broken at any point (as in your question) then induced emf will be generated in it but no induced current will flow. In this condition the coil will not oppose the motion of magnet and the magnet will fall freely with the acceleration, equal to 'g'.


Thank You

Best Of Luck 
Harsh Sharma 7th Feb, 2019

hello rohan, 

The simple answer to your question is:

There wii be no EMF induced because it does not cut any component of earth's field so it falls under earth's gravity only and hence the acceleration of this magnet is equal to 'g'.


Hope this will clear your doubt.


Thanks

Amity University-Noida B.Tech...
Apply
Among top 100 Universities Globally in the Times Higher Education (THE) Interdisciplinary Science Rankings 2026
BML Munjal University | B.Tec...
Apply
A Hero Group Initiative | Up to 100% Scholarships | Highest CTC 32.99 LPA | Average CTC 8.45 LPA | Accepts JEE Score | Applications Closing Soon!
SRM University A.P UG Admissi...
Apply
UG Admissions Open 2026 | Highest CTC 52 LPA | Average CTC 9.09 LPA | 60+ Collaborations with the world's best Universities
Amity University-Noida MBA Ad...
Apply
Ranked among top 10 B-Schools in India by multiple publications | Top Recruiters-Google, MicKinsey, Amazon, BCG & many more.
Amity University-Noida BBA Ad...
Apply
Among top 100 Universities Globally in the Times Higher Education (THE) Interdisciplinary Science Rankings 2026
Poddar Business School PGDM A...
Apply
Highest CTC 24 LPA | Average CTC 8.5 LPA | 1600+ Recruiters | 165+ Corporates Linkages
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books