Class 6 Science Chapter 4 NCERT Solutions Hinglish mein: Exploring Magnets

Curiosity (Reprint 2026-27) ke Chapter 4, Exploring Magnets, ki Activities 4.1 se 4.7, in-text sawaalon, mazedaar activities aur “Let us enhance our learning” ke saare 11 sawaalon ke jawab. Page numbers book se milte hain. Khud ki jaane waali activities ke sample jawab hain. Short notes: Chapter 4 notes.

Hamaare aas-paas magnet (pages 61–62)

Kya magnet sirf kuch khaas cheezon se bani vastuon se chipakta hai? Haan. Ye sirf magnetic materials, jaise iron, nickel aur cobalt, se bani vastuon se chipakta hai, lakdi, plastic ya kaanch se nahi.

Activity 4.1: magnetic aur non-magnetic materials (pages 62–64)

Table 4.1, sample entries:

Vastu	Material	Andaaza	Dekha
Pencil	Lakdi	Nahi	Nahi
Eraser	Rubber	Nahi	Nahi
Keel	Iron	Haan	Haan
Paper clip	Steel	Haan	Haan
Chaabi	Iron	Haan	Haan
Scale	Plastic	Nahi	Nahi
Bottle	Kaanch	Nahi	Nahi
Taar	Copper	Haan (dhaatu hai)	Nahi

Kya andaaza har vastu ke liye sahi tha? Hamesha nahi: kai log sochte hain ki har dhaatu chipkegi, par copper, aluminium aur brass nahi chipakti. Kya chipka? Iron aur steel ki vastuein. Nishkarsh: sirf kuch cheezein, yaani magnetic materials, magnet se khinchti hain. Table ke non-magnetic materials: lakdi, rubber, plastic, kaanch aur copper.

Kya magnet ke saare hisse barabar kheenchte hain? Nahi: Activity 4.2 dekho.

Activity 4.2: magnet ke poles (pages 64–65)

Zyaadatar iron filings bar magnet ke dono siron ke paas chipakti hain aur beech mein bahut kam; filings barabar nahi chipakti. Doosre aakaar ke magnets ke saath bhi yahi hota hai: zyaadatar filings poles pe chipakti hain. Kya ek pole waala magnet mil sakta hai? Nahi: toote magnet ke sabse chhote tukde mein bhi North aur South dono pole hote hain.

Activity 4.3: disha dhoondhna (pages 65–66)

Kya magnet usi line pe rukta hai? Haan, har baar usi line pe rukta hai. Line kaunsi disha dikhaati hai? Uttar-dakshin. Sooraj se pata karo: Sooraj ugne ki jagah (poorab) ki taraf mooh karo; uttar tumhare left mein hai. Magnet ki jagah iron ki chhad kisi bhi disha mein ruk sakti hai, isliye sirf magnet uttar-dakshin mein rukte hain.

Activity 4.4: apna compass banaao (page 67)

Ek hi pole se ek hi disha mein 30 se 40 baar ragadne ke baad sui steel ki pinein kheenchti hai: wo magnet ban gayi. Cork pe tairaane pe iske sire hamesha usi disha, uttar aur dakshin, mein rukte hain, cork chahe jitni baar ghumaao. Apna compass kaise banaayein? Bilkul isi tarah.

Activity 4.5: do magnets (pages 68–69)

Do magnets paas laane pe kya hota hai? Pencilon pe rakha magnet A ulte poles aamne-saamne hone pe B ki taraf aur same poles aamne-saamne hone pe door ludhakta hai. Ye hamesha paas aate magnet ki taraf nahi jaata. Isse pata chalta hai ki ulte poles kheenchte aur same poles dhakelte hain. Ek magnet ki jagah iron ki chhad ho to uske dono sire dono poles se khinchte hain: magnet ki pehchaan repulsion se hoti hai.

Activity 4.6: magnet aur compass (pages 69–70)

Kya sui mudti hai? Haan. Bar magnet ka North pole sui ke North sire ke paas laane pe sui ka North sira door jaata hai. South pole laane pe paas aata hai. Compass ki sui bhi magnet hai, isliye yahi karti hai.

Activity 4.7: cheezon ke aar-paar magnetism (pages 70–71)

Table 4.2:

Beech mein rakhi cheez	Observation
Lakdi	Mudne mein koi khaas badlaav nahi
Cardboard	Koi khaas badlaav nahi
Plastic	Koi khaas badlaav nahi
Kaanch	Koi khaas badlaav nahi

Magnet ka asar non-magnetic cheezon ke aar-paar jaata hai.

Magnets ke saath maza (pages 71–72)

• Maala: haan. Magnet se ek steel ki pin ya clip latkaao, phir usse doosri, aur aise hi; har ek agli ko kheenchti hai.
• Maze: haan. Cardboard tray ke neeche chalaaya magnet steel ki goliyon ko kheenchta hai, kyunki uska asar cardboard ke aar-paar jaata hai.
• Paani mein paper clip: magnet ko glass ke bahar clip ke paas lagaakar kinaare tak upar sarkaao; kuch geela nahi hota.
• Matchbox gaadiyan: same poles aamne-saamne hon to gaadiyan ek-doosre se door bhaagti hain.

Let us enhance our learning (pages 74–76)

1. Khaali jagah bharo

(i) Do magnets ke ulte poles ek-doosre ko attract karte hain, jabki same poles ek-doosre ko repel karte hain. (ii) Magnet ki taraf khinchne waali cheezein magnetic materials kehlaati hain. (iii) Magnetic compass ki sui uttar-dakshin (north-south) disha mein rukti hai. (iv) Magnet ke hamesha do poles hote hain.

2. Sahi ya galat

(i) Galat: magnet todne pe hamesha dono poles waale tukde bante hain. (ii) Sahi: same poles ek-doosre ko dhakelte hain. (iii) Galat: iron filings zyaadatar siron (poles) ke paas chipakti hain, beech mein nahi. (iv) Sahi.

3. Column I aur Column II

Column I	Column II
N – N	Repulsion
N – S	Attraction
S – N	Attraction
S – S	Repulsion

4. Atharv ki U-clips

Vikalp (i): 10, 2, 10. Position A aur C bar magnet ke do sire (poles) hain, jahan kheench sabse zyada hai, aur B beech hai, jahan bahut kam clips chipakti hain.

5. Reshma ki teen chhadein

Chhadon ko jodiyon mein, sire se sira, paas laao aur palat-palat ke dekho. Agar do chhadein kisi sthiti mein ek-doosre ko dhakelti hain, to dono magnet hain. Jo chhad har sire pe khinchti hai aur kabhi nahi dhakelti, wo iron ka tukda hai.

6. Bina nishaan ke magnet ke poles

Nishaan waale magnet ka North pole bina nishaan waale magnet ke ek sire ke paas laao. Agar wo sira dhakela jaaye, to wo North pole hai; agar khinche, to South pole. Doosre sire ko nishaan waale South pole se jaancho: repulsion pakka karta hai ki wo South pole hai.

7. Doosre magnet ke bina North pole dhoondhna

Bar magnet ke beech mein dhaaga baandh ke use iron ki cheezon se door aazaadi se latkaao (ya paani mein lakdi ke tukde pe tairaao). Rukne pe jo sira uttar ki taraf hai (poorab mein ugte Sooraj se uttar pata karo), wo uska North pole hai.

8. Dharti ke magnet ke poles

Compass sui ka North pole bhaugolik uttar ki taraf rehta hai. Kyunki ulte poles kheenchte hain, isliye dharti ke magnet ka South pole bhaugolik uttar ke paas aur North pole bhaugolik dakshin ke paas hona chahiye.

9. Mechanic ka screwdriver

Screwdriver ki nok ko magnet ke ek pole se ek hi disha mein kai baar ragadkar magnet bana do, jaise silaai ki sui ko banaaya tha, ya uspe chhota magnet laga do. Steel ke screw magnetic hain, isliye wo girne ki jagah screwdriver se chipke rahenge.

10. Do ring magnets

Magnet X, Y ke upar isliye ruka hai kyunki unki aamne-saamne waali satahein same poles hain, jo ek-doosre ko dhakelti hain, isliye X tairta hai. Bina dhakele X ko Y se milaane ke liye X ko nikaalo, ulta karo aur waapas daal do: ab ulte poles aamne-saamne hain aur kheenchte hain, isliye X neeche Y tak aa jaata hai.

11. Teen bar magnets

Sire se sire jude magnet ek-doosre ko kheenchte hain, isliye chhoone waale sire ulte poles hain. Sira 5 N hai, isliye 4 S hai, us magnet ka doosra sira 3 N hai, 2 S hai, aur 1 N hai. Sira 6, sire 5 waale magnet ka doosra sira, S hai.

Learning further (pages 76–77)

Alag magnets se pinein uthaana: wo alag ginti mein pinein uthaate hain kyunki unki taakat alag hai, jo magnet ke material, size, aakaar aur kitna magnetise kiya gaya, is pe nirbhar hai; gira ya garam hua magnet bhi kamzor ho jaata hai.

Phudakta mendhak: scale pe North-South baari-baari se lage ring magnets ke upar se guzarte samay mendhak ka ring magnet same pole pe upar dhakela jaata hai aur ulte pole pe neeche khincha jaata hai, isliye mendhak phudakta lagta hai.

Extra: neeche ki jaankaari book se aage ki hai; details kitaabon ya bharosemand websites se jaanch lo.

Maglev train: ‘maglev’ yaani magnetic levitation. Taakatwar magnets train ko patri se zara upar utha dete hain aur aage dhakelte hain, isliye ghisaav bahut kam hota hai aur ye bahut tez chal sakti hai. Model ke liye patri pe aur halke card ki ‘train’ pe same poles aamne-saamne rakhkar ring magnets laga sakte ho.

Alag aakaar kyun? Har kaam ko alag aakaar chahiye: U-shaped magnet dono poles ko paas laakar cheezein uthaate hain, ring magnets loudspeaker mein lagte hain, disc magnets fridge magnet aur bag ke clasp mein, aur bar magnets prayogon mein.

Medicine mein magnets: MRI scanner shareer ke andar ki tasveerein banaane ke liye bahut taakatwar magnets use karte hain, aur doctor zakhmi aankh se iron ke chhote tukde nikaalne ke liye magnet use karte aaye hain.

Aur practice ke liye padho magnet kya hai, magnet ke poles, magnetic aur non-magnetic materials, compass kaise kaam karta hai aur magnets mein attraction aur repulsion.