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A current- carrying straight wire is kep...

A current- carrying straight wire is kept along the axis of a circular loop carrying a current. The straight wire

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A rotating ring is like one current carrying coil, whose magnetic field at a point on its axis remains parallel to axis and hence, will be parallel to the current carrying wire. Therefore, no force will act between the two.
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MODERN PUBLICATION-MOVING CHARGES AND MAGNETISM-Conceptual Questions
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  10. If a current flowing in a circular coil is in anticlockwise direction ...

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  11. A current- carrying straight wire is kept along the axis of a circular...

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  12. Quite often, connecting wires carrying currents in opposite directions...

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  13. A proton beam is going from north to south and an electron beam is goi...

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  14. A fixed straight wire is near a movable square loop as shown in the fi...

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  15. There is one moving charge. What types of fields are associated with i...

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  16. A charged particle is projected perpendicular to a uniform magnetic fi...

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  17. Identical charged particles are accelerated through the same potential...

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  18. Two long wires are placed parallel to each other. The current carried ...

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  19. There is no change in the energy of a charged particle moving in a mag...

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  20. Can a time independent magnetic field set into motion an electron init...

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