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Wel -come

Wel -come. dhebewadi. K.b.p . vidyalaya. Presented by. Chorage vedika. Kolekar priya. standard- 8 th C Seat No.- 8340 Subject- General Science. Standard- 8 th C Seat No.- 8345 Subject-General Science. Dr. sudhir kumbhar. Guide by-. magnetism. unit.

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Wel -come

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  1. Wel-come

  2. dhebewadi K.b.p. vidyalaya

  3. Presented by . . . Choragevedika Kolekarpriya standard- 8th C Seat No.- 8340 Subject- General Science • Standard- 8th C • Seat No.- 8345 • Subject-General Science

  4. Dr. sudhirkumbhar Guide by-

  5. magnetism unit

  6. Sub units • types of magnets • Properties of magnets • Uses of magnets • Magnetic and nonmagnetic material

  7. Types of magnets • Horse shoe magnet • Bar magnet • Disc magnet • Magnetic needle

  8. Horseshoe magnet

  9. Bar magnet

  10. Disc magnet

  11. Magnetic needle

  12. Properties of Magnets • 1] Like magnetic poles repel each other. • 2] unlike magnetic poles attract each other. • 3] magnet has two poles.

  13. Uses of Magnets • Magnets are used in magnetic compass. • They are also used in door closers, refrigerators,cranes and pinholders.

  14. Magnetic Material Materials which attract to the magnet are called magnetic materials. Examples- Iron, Cobalt and Nickel are magnetic substances.

  15. Nonmagnetic Material • Material which do not attrac towards the magnet are called nonmagnetic substances. • Examples- • Plastic, rubber, copper and wood are nonmagnetic substances.

  16. thankyou

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