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Electrical Engineering - Magnetism And Electromagnetism MCQs
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Electrical Engineering - Magnetism And Electromagnetism MCQs
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1. The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is
2. Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be
3. The materials are a bit inferior conductors of magnetic flux than air.
4. What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ?
5. The stray line of magnetic flux is defined as
6. The magnetic reluctance of a material
7. A keeper is used to
8. Which of the following is not a unit of flux?
9. A certain amount of current flows through a ring-shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil ?
10. Gilbert is a unit of
11. The force between two long parallel conductors is inversely proportional to
12. The Biot-savart’s law is a general modification of
13. In a simple magnetic field the strength of magnet flux
14. When two ends of a circular uniform wire are joined to the terminals of a battery, the field at the center of the circle
15. The uniform magnetic field is
16. If a copper disc is rotated rapidly below a freely suspended magnetic needle, the magnetic needle shall start rotating with a velocity
17. Susceptibility is positive for
18. Magnetic moment is a
19. Ferrites are a sub-group of
20. The bar magnet has
21. The left hand rule correlates to
22. Fleming’s left hand rule is used to find
23. The working of a meter is based on the use of a permanent magnet. In order to protect the meter functioning from stray magnetic fields
24. When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon
25. The magneto-motive force is

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