Iron filings reveal lines of force| Magnetism | Physics

This activity uses a bar magnet, iron filings, and a clean white surface on which to watch the action of the magnet on the iron filings. The fact that a magnet attracts certain metallic objects is well known, but the magnetic field is invisible. This video shows how to use iron filings to reveal the shape and size of the magnetic lines of fiorce. The space around the magnet where its influence can be demonstrated, is callled the magnetic field. The demonstration shows some distinct characteristics - the lines of force attempt to form closed loop from pole to pole, they never intersect, and they're all the same strength. The concept of magnetic field strength is informally introduced as the number of lines per unit area. The video closes by asking about the Earth's magnetic field - do you have an idea how the field can be detected or demonstrated?

[@ishaangupta9775]

Coin lies within the field but weight acting in opp direction is more in magnitude........normal contact force, a self adjusting force, thus decreases so as to mantain equilibrium

[@michaelhuskajr192]

The coin is still within the magnetic field, it is just not strong enough to attract the coin

[@ishaangupta9775]

I agree

[@the15minutegamer24]

yes

[@jawadalsamad3]

i agree

[@aartiverse]

yepp

[@sleepyonepump7331]

yessir

[@dynamight3684]

Thanks Sir!

[@bundangmark]

Thank you for the video!

[@ishansingh4139]

Thank you aman

[@bishnumaya9362]

Well explained!!

[@YaseenKhan-of8br]

I did experiment on magnetic field by using magnetic bar and compass so it gives me the same lines moving from N pole to S pole

[@swapnakota7852]

Thanks sir I understood it we'll

[@gayatripatasingh3354]

thanku its very helpful to understand

[@shreyapandey1131]

"They all have same strength" will u plz explain it Is it in respect of solenoid??

[@technocomedy54]

Thanks sir I understand it well

[@anshpoplivlogs]

Wow

[@omartarek4167]

Heyy class

[@doctorco2089]

I am here too miss Hyperloop works by airflow not magnets -_-

[@tusharshelke05]

I was in 3 class when the video was made

[@wenura8128]

👍👍👍

[@catc4188]

I was forced to watch this in class

[@arimus6022]

ms raji's uncle

[@kiranbhute7914]

Concentration of magnetic field is strongest near the poles not at the poles

[@shantysachdeva3699]

Why does iron fillings not get attracted to magnet

[@mahinkarani1757]

Yo guys! this guy is my uncle Bajit! GO UNCLE

[@d4vian398]

Idc

[@natyang2123]

@@d4vian398 lol

[@anson3490]

Lieling

[@cherysahmed1547]

@@d4vian398 your;e so rude, maybe he is really his unkle

[@essagamer1438]

Yooooooo

[@ZainAli-qm7fk]

Hahahahahahaha buda baba

[@bahaaassaad5847]

hello cambridge ugh