Lagnever AI English

Magnet ke poles

Short mein jawab

Magnet ke poles uske do sire hain, jahan kheench sabse zyada hoti hai aur sabse zyada iron filings chipakti hain. Ye North pole, jo aazaadi se latakne pe uttar ki taraf rehta hai, aur South pole hain. Poles hamesha jodi mein hote hain: magnet todne pe har tukde mein North aur South pole dono rehte hain.

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Kya magnet ka har hissa barabar kheenchta hai?

Activity 4.2 mein kaagaz ki sheet pe iron filings (iron ke bahut chhote tukde) failaaye jaate hain, aur unke upar bar magnet rakha jaata hai. Kaagaz thapthapaaya jaata hai aur magnet ko dhyaan se dekha jaata hai.

Iron filings bar magnet ke dono siron, yaani poles, pe ghani jama hoti hain, aur beech mein bahut kam
Iron filings poles dikhaati hain

Filings har jagah barabar nahi chipakti. Zyaadatar bar magnet ke do siron ke paas chipakti hain, aur baaki hisse pe bahut kam. Magnet ki kheench in siron pe sabse zyada hoti hai.

North pole aur South pole

Magnet ke wo do sire jahan kheench sabse zyada hai, uske poles hain: North pole aur South pole. Doosre aakaaron ke magnets ke saath activity dohraao, to yahi milta hai: aakaar chahe jo ho, zyaadatar filings poles pe chipakti hain.

Kaise pata chale kaunsa pole kaunsa hai? Bar magnet ko beech mein dhaaga baandh ke aazaadi se latkaao. Ye uttar-dakshin disha mein rukta hai. Uttar ki taraf waala sira North-seeking pole, yaani North pole, hai; dakshin ki taraf waala South-seeking pole, yaani South pole. Aur padho compass kaise kaam karta hai mein.

Poles hamesha jodi mein

Kya ek hi pole waala magnet mil sakta hai? Nahi. Magnet ko chhote tukdon mein todo, to North aur South pole hamesha jodi mein rehte hain, sabse chhote tukde mein bhi. Akela North pole ya akela South pole ho hi nahi sakta.

Bar magnet todna: har tukda, aur dobaara todne pe har chhota tukda, apna North aur South pole rakhta hai
Poles phir bhi jodi mein

Ye har aakaar ke liye sach hai: bar, U-shaped, ring, disc, cylindrical ya spherical. Ring ya disc magnet ke poles aam taur par uski do chapti satahon pe hote hain (Extra), jabki U-shaped magnet ke poles uske do siron pe.

Poles aapas mein kaise behave karte hain

Do magnets paas laane pe same poles dhakelte hain (North-North ya South-South) aur ulte poles kheenchte hain (North-South). Isi se nishaan waale magnet ki madad se bina nishaan waale magnet ke poles pata lagte hain: agar koi sira nishaan waale North pole se dhakela jaaye, to wo bhi North pole hai. Aur padho magnets mein attraction aur repulsion mein.

Poles ke nishaan

Magnets pe alag-alag tarah se nishaan hote hain:

  • Do siron pe N aur S akshar.
  • North pole dikhaane ke liye safed bindi.
  • North pole ke liye laal aur South pole ke liye neela rang.

Compass ki sui bhi isi tarah hai: uska uttar dikhaane waala sira aam taur par laal rangaa hota hai.

Bina nishaan ke magnet ke poles dhoondhna

  • Doosre magnet ke bina: use dhaage se aazaadi se latkaao. Jo sira uttar ki taraf rukta hai, wo North pole hai.
  • Nishaan waale magnet se: nishaan waala North pole ek sire ke paas laao. Dhakka matlab wo sira North pole hai; kheench matlab South pole (doosre sire se repulsion se pakka karo).
  • Iron filings se: ye batati hain ki poles kahan hain, par kaunsa North aur kaunsa South, ye nahi.

Magnet kya kheenchta hai, ye jaanne ke liye padho magnetic aur non-magnetic materials. Textbook ke sawaalon ke liye dekho Chapter 4 ke NCERT solutions; poore chapter ke liye Chapter 4 ke notes.

Practice karo

  1. Bar magnet ko iron filings ke upar rakhne pe zyaadatar filings chipakti hain:

    1. (a) beech mein
    2. (b) dono siron ke paas
    3. (c) sirf ek taraf
    4. (d) kahin nahi
    Jawab dekho

    Jawab: (b) dono siron ke paas

  2. Ek magnet teen tukdon mein toota. Har tukde mein kitne poles honge?

    1. (a) Ek
    2. (b) Do
    3. (c) Teen
    4. (d) Ek bhi nahi
    Jawab dekho

    Jawab: (b) Do

  3. Kuch magnets pe North pole kis nishaan se dikhaate hain?

    1. (a) safed bindi
    2. (b) kaala cross
    3. (c) hari patti
    4. (d) chhed
    Jawab dekho

    Jawab: (a) safed bindi

  4. Magnet ke North pole ko North-seeking pole kyun kehte hain?

    Jawab dekho

    Jawab: Kyunki magnet ko aazaadi se latkaane pe ye sira hamesha ghoomkar uttar ki taraf rehta hai.

  5. Iron filings se magnet ke poles kaise dhoondhoge?

    Jawab dekho

    Jawab: Magnet ko iron filings ke upar rakho aur kaagaz thapthapaao. Jahan sabse zyada filings chipakti hain wahi poles hain, magnet ke dono siron ke paas.

Students ke sawal

Magnet ke poles kya hain?

Magnet ke do sire jahan iski kheench sabse zyada hoti hai aur sabse zyada iron filings chipakti hain. Inhe North pole aur South pole kehte hain.

Kya magnet ka sirf ek pole ho sakta hai?

Nahi. Poles hamesha jodi mein hote hain. Magnet ko chhote tukdon mein todo, to har tukde mein, sabse chhote mein bhi, North pole aur South pole dono hote hain.

Magnet ke poles kaise dikhaaye jaate hain?

Kuch magnets pe poles N aur S likhe hote hain. Kuch mein North pole safed bindi se dikhta hai, aur kabhi North pole laal aur South pole neela rangaa hota hai.

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