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How do electromagnets work?...

How do electromagnets work?

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It we pass electricity through a wire which is wounded around a soft iron,soft iron becomes magnet. IF we put off electricity, soft iron loses its magnetism . In this way electomagnets work in devices.
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VGS PUBLICATION-BRILLIANT-ELECTROMAGNETISM-CREATIVE QUESTION FOR NEW MODEL EXAMINATION (SEC-4)
  1. How do electromagnets work?

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  2. How can you verify with experiment."The magnetic field lines are close...

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  3. Name the device that converts electrical energy into mechanical energy...

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  4. List out the materials required for the Oersted experiment of electrom...

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  5. Why the current carrying straight wire which is kept in a uniform magn...

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  6. Write the experimental procedure and observations of the experiment th...

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  7. Answer the following questions by observing above diagram 1) Which d...

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  8. List out the apparatus and experimental procedure for the experiment t...

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  9. Explain the working process of induction stove.

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  10. Which device is used to convert mechanical energy into electrical ener...

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  11. A coil is hung as shown in the figure.A bar magnet with north pole fac...

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  12. A coil is hung as shown in the figure.A bar magnet with north pole fac...

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  13. A coil is hung as shown in the figure.A bar magnet with north pole fac...

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  14. Can you apply conservation of energy for electromagnetic induction?

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  15. Explain the working process of induction stove.

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  16. How the tape of a tape recorder reproduces voice?

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  17. Explain different ways to induced current in a coils.

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  18. A charged particle 'q' is moving with a speed 'v' perpendicular to the...

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  19. A circular coil of radius 10 cm, 500 turns and resistance 2 Omega is p...

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  20. Karthik did not understand the word induced emf. Hemanth was explained...

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  21. How can you verify with experiment."The magnetic field lines are close...

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