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Electromagnetic Engineering: Steady Magnetic Field
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Electromagnetic Engineering: Steady Magnetic Field
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25 Questions

1. Find the magnetic flux density B when E is given by 3sin y i + 4cos z j + ex k.
2. Calculate the magnetic field at a point on the centre of the circular conductor of radius 2m with current 8A.
3. Find the flux density due to a conductor of length 6m and carrying a current of 3A(in 10-7 order)
4. Identify the diamagnetic material.
5. Find the permeability of a medium whose susceptibility is 100.
6. When currents are moving in the same direction in two conductors, then the force will be
7. Find the ratio of permeability of the two media when the wave is incident on the boundary at 45 degree and reflected by the boundary at 60 degree.
8. Which of the following is true regarding magnetic lines of force?
9. The line integral of the magnetic field intensity is the
10. The force per unit length of two conductors carrying equal currents of 5A separated by a distance of 20cm in air(in 10-6 order)
11. Find the magnetic field of a finite current element with 2A current and height 1/2π is
12. The tangential component of the magnetic field intensity is continuous at the boundary of separation of two media. State True/False.
13. The Bohr magneton is given by
14. The normal component of magnetic field intensity at the boundary of separation of the medium will be
15. In a static magnetic field only magnetic dipoles exist. State True/False.
16. Find the Lorentz force of a charge 2.5C having an electric field of 5 units and magnetic field of 7.25 units with a velocity 1.5m/s.
17. Calculate the flux density due to a circular conductor of radius 100nm and current 5A in air.
18. Find the orbital angular moment of a dipole with angular velocity of 1.6m/s and radius 35cm(in 10-31 order)
19. The current element of the solenoid of turns 100, length 2m and current 0.5A is given by,
20. The magnetization is defined by the ratio of
21. Find the magnetization of the material with susceptibility of 6 units and magnetic field intensity of 13 units.
22. Find the magnetic field intensity due to an infinite sheet of current 5A and charge density of 12j units in the positive y direction and the z component is below the sheet.
23. The Ampere law is based on which theorem?
24. The torque expression of a current carrying conductor is
25. Find the electric field when the velocity of the field is 12m/s and the flux density is 8.75 units.

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