PATHFINDER PHYSICS VIDEO SOLUTIONS | CHARGED ROLLING RING |MAGNETISM | BUILD 21| JEE ADVANCED SCHOOL
Channel: PHYSICS SIR JEE - JANARDHAN - IIT JEE & OLYMPIAD
Date: 2020-12-25

DON'T MISS THE TWO PRACTICE PROBLEMS AT THE END.
AN UNSEEN SHORT COUNTER-INTUTIVE WAY TO SOLVE MAGNETIC FORCE PROBLEM USING CONCEPTS OF EMI
Q : A ring of radius r made of an insulating material has mass m and carries uniform charge. Initially it rests on a frictionless horizontal tabletop with its plane vertical. A uniform horizontal magnetic field of induction B pointing everywhere parallel  to the axis of the ring is established in the region to the right of a vertical plane   as shown in the figure. The ring is pushed forward to acquire a velocity   without any rotation. What should the charge on the ring be so that it starts rolling on the tabletop after completely entering the region of the magnetic field?
A MIND-BLOWING USE OF ANALOGY TO AVOID A LENGTHY INTEGRATION FOR  BUILD UP YOUR UNDERSTANDING-21 OF CHAPTER-14 "MAGNETIC EFFECTS OF ELECTRIC CURRENT" SOLVED FROM THE BOOK "PATHFINDER PHYSICS"👇

HERE'S THE LINKS FOR TWO VIDEOS INVOLVING FIELD TRANSFORMATION TECHNIQUE YOU MIGHT BE INTERESTED IN 👇
https://youtu.be/gOvybKkoN6M
https://youtu.be/dkqAuMOZUBA

HERE'S THE PLAYLISTS LINKS FOR OTHER "MAGNETIC FIELD AND EMI" CHALLENGES👇

50_MAGNETISM PART 1_ magnetic force on a charged particle: https://www.youtube.com/playlist?list=PLtzNDt-x8_03x7Bc0_PsiXieZjAgljgw7

52_MAGNETISM PART-3 (FLUX,FARADAY'S LAW): https://www.youtube.com/playlist?list=PLtzNDt-x8_03V5zcPxgbGgJfXNJmb_auv

*HERE'S THE LINK FOR PATHFINDER SOLUTIONS PLAYLIST*👇
https://www.youtube.com/playlist?list=PLtzNDt-x8_03l7K9xSHjTwePbtSoAgB0H

HERE'S PLAYLIST FOR AITS SELECT SOLUTIONS SERIES👍
https://www.youtube.com/playlist?list=PLtzNDt-x8_02ehm3-vne2BeZ_WT8HL1yJ

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OTHER PLAYLISTS
HERE'S THE LINK FOR "OLYMPIAD WORKOUT SERIES" BOOKS,SYLLABUS,RESOURCES👇
https://youtu.be/bsHVCsxwtOw

RESOLVED series playlist 👇
https://www.youtube.com/playlist?list=PLtzNDt-x8_00MMJNOziEtx7ztBgfI48Lo

HERE'S THE PLAYLIST OF REST OF THE "OLYMPIAD WORKOUT SERIES"👇
https://www.youtube.com/playlist?list=PLtzNDt-x8_02CkliS6InbZBKLwEfTGskN

HERE'S THE JEE ADV SOLUTIONS -THE ALPHA AND OMEGA SERIES👇
https://www.youtube.com/playlist?list=PLtzNDt-x8_00s2pTsoP81sGPVnReRJXah

HERE'S LINK FOR PLAYLIST OF "JEE MAINS DEBATED QUESTIONS" PLAYLIST👇
https://www.youtube.com/playlist?list=PLtzNDt-x8_02Myd1gV35ajX539XLHt0Z1
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