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Are the magnetic field lines closed? Exp...

Are the magnetic field lines closed? Explain.

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The correct Answer is:
A solenoid
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Magnetic field lines are

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(A) : The trajectory of neutron when it is projected perpendicular to a magnetic field is a parabola . (R) : A moving charge entering parallel to the magnetic field lines moves in a circular path.

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Draw the magnetic field lines in uniform magnetic field.

Rajkumar said to you that the magnetic field lines are open and they start at north pole of bar magnet and end at south pole. What questions do you ask Rajkumar to correct him by saying "Field lines are closed"?

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VGS PUBLICATION-BRILLIANT-ELECTROMAGNETISM-CREATIVE QUESTION FOR NEW MODEL EXAMINATION (SEC-2) CONCEPTUAL UNDERSTANDING
  1. IF a copper rod carries a direct current,then where will the magnetic ...

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  2. Which device is used to determine the direction of magnetic field of a...

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  3. Are the magnetic field lines closed? Explain.

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  4. What are the materials required to prove that Faraday's law?

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  5. What do you conclude about magnetic field lines after conducting exper...

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  6. How would you demonstrate the presence of an induced current in the ab...

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  7. There are a) current carrying wire b) current carrying circular coil...

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  8. Mark north and south pole in the given diagram.

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  9. Draw the direction of the magnetic field at 'P'.

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  10. Draw the magnetic field lines in uniform magnetic field.

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  11. Which of the following is appreciable in the making of a motor? Why? ...

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  12. How do you appreciate a horse shoe magnet in the making of a motor?

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  13. Mention two uses of solenoid.

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  14. Give one application to law of electromagnetic induction.

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  15. Where the electromagnets are used?

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  16. What is the frequency of the A.C. supplied in your house?

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  17. Which instruments detects small currents?

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  18. Name the appliances working with the principle of Induced emf

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  19. Give one application of the principle "Electrical energy is converted ...

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  20. Find the length of the conductor which is moving with a speed of 10 m/...

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