81 Views

a bar magnet is demagnetised by inserting it inside a solenoid of length 0.2m, 100 turns and carrying a current of 5.2A. the coercivity of the bar magnet is


Pankajkumaryadav 16th Sep, 2019
Answer (1)
Mayank Chowdhary 11th Feb, 2020

Intensity of magnetising field - in which

SI unit is A/m

In CGS - Oersted

H = B/u

You can get the answer using the following formulas..

Therefore the answer after substitution comes out to be 2600 A/m.

These are some of the basic easy questions which you need to master upon if you aim to appear for competetive entrance examinations like JEE MAINS, NEET, CET, etc,

Best wishes. Thankyou.

Related Questions

MAHE Manipal M.Tech 2025
Apply
NAAC A++ Accredited | Accorded institution of Eminence by Govt. of India | NIRF Rank #4
Amity University, Noida Law A...
Apply
700+ Campus placements at top national and global law firms, corporates, and judiciaries
Amity University, Noida BBA A...
Apply
Ranked amongst top 3% universities globally (QS Rankings)
Chandigarh University Admissi...
Apply
Ranked #1 Among all Private Indian Universities in QS Asia Rankings 2025 | Scholarships worth 210 CR
Amity University | M.Tech Adm...
Apply
Ranked amongst top 3% universities globally (QS Rankings).
Sanskriti University LLM Admi...
Apply
Best innovation and research-driven university of Uttar Pradesh
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