Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

Mam,pls Define permeability,coercivity and retentivity of substance. How do we classify paramagnetic, diamagnetic & ferromagnetic substances on the basis of these given properties?
Asked by snehaghodke | 19 Feb, 2011, 10:08: PM
answered-by-expert Expert Answer

Dear student

Pls. post each query individually.

Permeability of a substance is a measure of its conduction of magnetic lines of force through it.

Coercivity of a magnetic substance is that value of magnetising field which is required to reduce the residual intensity of magnetisation in the sample to zero.

Value of intensity of magnetisation retained by the magnetic substance when the magnetiding field is reduced to zero is called retentivity.

Hope this helps.

Regards

Team

Topperlearning

Answered by | 20 Feb, 2011, 11:38: AM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
how bar magnet is equivalent to solenoid
Asked by munaxa013 | 17 Jan, 2024, 11:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Soft iron is used to make the core of transformer because of it's.....  a) low coercivity and low retentivity b) high corecivity and low retentivity Chose correct option and give reason. 
Asked by Jayashri | 06 Mar, 2023, 06:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
the most suitable metal for permanent magnet is?
Asked by agalyasathishkumar1 | 01 Jun, 2022, 11:48: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
answer
question image
Asked by akshaygavit07.12dgatl | 26 Sep, 2021, 02:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Two small bar magnet are placed in a line at certain distance d apart if the length of each magnet is negligible comapared to d the force between them is inversely proportional to
Asked by vanshikaklnr | 10 Sep, 2020, 05:33: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
what is geometric meridian and magnetic meridian?
Asked by manjubannatti2425 | 29 Aug, 2020, 08:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Calculate torque and force acting on the current carrying loop.
question image
Asked by patra04011965 | 21 Jun, 2020, 08:35: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
pls solve
question image
Asked by mufeedatvp2000 | 19 Apr, 2020, 12:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Hi tell which option.only one option per question  can be correct not two.
question image
Asked by jain.pradeep | 29 May, 2019, 09:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Why can't the south pole of the magnetic needle deflect in Ampere swimming Rule??  
Asked by pratishapranisha153 | 21 May, 2019, 09:45: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×