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An electromagnet is a temporary magnet. ...

An electromagnet is a temporary magnet.
Is this statement true.

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. The magnetic field around a current carrying straight conductor is in...

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  2. If the total number of turns of solenoid is doubled, and simultaneousl...

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  3. An electromagnet is a temporary magnet. Is this statement true.

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  4. A stationary charged particle in a magnetic field experiences a magnet...

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  5. A neutron moving in a magnetic field experiences a magnetic force. Is ...

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  6. F is always perpendicular to v and B in the formula F=q( v × B ). ...

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  7. Fill in the blanks A magnet attracts materials like .

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  8. Space around a .......... in which its magnetic effect can be experien...

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  9. Fill in the blanks Magnetic field lines are directed to outside the ...

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  10. Fill in the blanks The tangent at any pont on the magnetic field line ...

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  11. Fill in the blanks Magnetic field produced by a current carrying condu...

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  12. SI unit of magnetic flux is :

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  13. Fill in the blanks The magnetic field produced by a circular current c...

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  14. Fill in the blanks A long, tightly wound helical coil of insulated met...

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  15. Fill in the blanks The material used for making permanent magnetis ar...

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  16. Fill in the blanks The magnetic force acting on a charged particle dep...

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  17. Fill in the blanks Electric motor is a device which converts into .

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  18. Fill in the blanks The direction of induce current can be found by .

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  19. Fill in the blanks A current which flows in the same direction is cal...

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  20. Fill in the blanks The concept of electromagnetic induction was forwar...

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