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How is the direction of a magnetic field...

How is the direction of a magnetic field `vecB` at a point related to the magnetic line of force passing throught that point?

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`vecB` is tengential to the line of force at that point
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CHHAYA PUBLICATION-ELECTROMAGNETISM -EXERCISE
  1. What is the nature of lines of force in a uniform magnetic field?

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  2. In a uniform magnetic field, lines of force are equispaced straight l...

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  3. How is the direction of a magnetic field vecB at a point related to th...

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  4. A manetic needle is kept below a very long conducting wire. If current...

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  5. A magnetic needle is placed below a very long conducting wire. If curr...

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  6. How does the magnetic field at a point near a long straight current-c...

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  7. When 1 A current flows through a circular conductor, the magnetic fiel...

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  8. Which physical quantity has the unit Wb.m^(-2)? Is it a scalar or a ve...

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  9. What is the unit of magnetic permeability mu(0) of vacuum?

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  10. What is the magnetic field produced at a distance 1 m from a long, str...

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  11. The magnetic field at a distance 1 m from a long straight conductor is...

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  12. A solenoid carrying 1 A current has a length of 1 m and contains 10000...

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  13. What will be the nature of the path of a charged particle when it ente...

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  14. If the magnetic force on a moving charged particle in a magnetic field...

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  15. If the angle between the direction of motion of a charged particle and...

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  16. An electron moving at right angle with a uniform magnetic field revolv...

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  17. An electron and a proton enter a uniform magnetic field perpendicularl...

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  18. Can a stationary charge produce a magnetic field?

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  19. What is the magnitude of force experienced by stationary charge placed...

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  20. Does any force act on a magnetic north pole if it is brought near a ne...

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