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How will you prove that current flowing ...

How will you prove that current flowing through a copper wire produces magnetic effect?

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MODERN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXERCISE
  1. Magnetic field lines are discontinuous curves. Is this statement true.

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  2. Why two magnetic lines of forces never intersect each other?

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  3. How will you prove that current flowing through a copper wire produces...

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  4. The strength of magnetic field gets halved if the current flowing in a...

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  5. The direction of magnetic field at the center of circular current carr...

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  6. If the number of turns of a circular current carrying conductor is dou...

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  7. An electromagnet is a solenoid with a soft iron core. Is this stateme...

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  8. When the number of magnetic field lines through a closed loop changes ...

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  9. In 15A wiring the copper wire used is thicker as compared to 5A wiring...

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  10. The direction of induced current can be found by Fleming's left hand r...

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  11. When the current changes the direction 50 times in one second then the...

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  12. Greater the power of an appliance, higher is the current flowing throu...

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  13. The magnitude of induced emf produced depends on the rate of change of...

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  14. The direction of magnetic field in case of a straight current carryin...

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  15. The magnetic field around a current carrying straight conductor is in...

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

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

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

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

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

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