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Why does a current-carrying conductor ex...

Why does a current-carrying conductor experience a force in a magnetic field?

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An electric current flowing through a conductor produces a magnetic field. As per Newton.s third law of motion, the magnet must also exert an equal and opposite force on the current-carrying conductor. Thus a current-carrying conductor experiences a force in a magnetic field. In 1820, French Scientist Andre Marie Ampere experimentally demonstrated the existence of this force.
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ZEN PUBLICATION-MAGNETIC EFFECTS OF ELECTRIC CURRENT -Additional question section (Short answer [SA] type 1 questions)
  1. Identify the poles of the magnet in the given Figures.

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  2. In the Figure, identify the poles marked P and Q as north pole or sout...

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  3. Why does a current-carrying conductor experience a force in a magnetic...

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  4. It is established that an electric current through a conductor produce...

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  5. A magnetic compass shows a deflection when placed near a current-carry...

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  6. A horizontal power line carries a current from east to west direction....

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  7. What would happen to the direction of rotation of a motor, if i] t...

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  8. How can the speed of rotation of the armature coil of an electric moto...

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  9. Draw the diagram of a simple electric motor. Label the following parts...

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  10. In what way can the magnitude of an induced current be increased ?

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  11. State the factors on which the induced emf in a coil rotating in a uni...

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  12. If the speed of rotation of the armature of a generator is doubled, ho...

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  13. For the current-carrying solenoid shown, draw the magnetic field lines...

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  14. What kind of energy transformation takes place in an electric motor ? ...

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  15. What is the role of fuse used in series with any electrical appliance ...

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  16. Whay is the earth pin longer and thicker than live and neutral pins ...

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  17. Name the three types of wires used in domestic circuits and mention t...

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  18. Give two uses of a magnetic compass.

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  19. A freely suspended magnet always points along north-south direction. W...

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  20. What are magnetic field lines ? How is the direction of a magnetic fie...

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