Magnetism related MCQ
Results
#1. Imaginary line joining the two poles of a magnet …..?
incorrect
#2. Materials which can be strongly magnetised are known as……materials?
#3. Eddy current loss is proportional to…..?
#4. Permanent magnetic materials are made by…..?
#5. Permanent magnetic materials are made by…..?
#6. One weber =…..?
#7. Eddy current losses are expressed in……?
#8. Relative permeability of free space is…..?
#9. High magnetic retentive materials are suitable for making…..?
#10. What is the unit of magnetic flux?
#11. What is the unit of magnetic flux?
#12. The product of current and number of turns called……?
#13. An alloy of iron and nickel called…..?
#14. permeability of magnetic material expressed in….?
#15. Hysteresis curve of a magnetic material represents its…..?
#16. Magneto motive force per unit length is called….?
#17. The substance not belongs to dia magnetic material is…..?
air is para magnet
#18. The entire group of magnetic lines is called….?
#19. Unit of flux density in SI unit?
#20. Unit of flux density in CGS unit?
#21. Unit of magnetic field in CGS unit?
#22. The ability of a material to retain its magnetism is known as….?
#23. Unit of Magneto motive force?
#24. Unit of Magneto motive force?
#25. Unit of ?
#26. Unit of magnetic intensity?
#27. Unit of magnetic intensity?
#28. The relative permeability of free space is…..?
#29. The current in electric circuit similar to….. in magnetic circuit?
#30. The current in electric circuit similar to….. in magnetic circuit?
#31. Two current carrying conductors placed side by side experience a force of attraction……..?
#32. Electromagnets are used in…..?
#33. Electromagnets are used in…..?
#34. If a magnet is placed in a rapidly reversing magnetic field, it will become…..?
#35. The phenomenon of induced magnetism lagging behind the magnetising force is known as……?
#36. For the minimum hysteresis loss in the core, the core material is should have…..?
#37. A material that can be magnetised only very slightly called….?
#38. A material that can be magnetised only very slightly called….?
#39. A material that can be magnetised only very slightly called….?
#40. The direction of flow of lines of force around a magnet is……?
#41. Direction of magnetic flux around a straight conductor can be determined by …..?
#42. Reciprocal of reluctance called….?
#43. Reciprocal of reluctance called….?
#44. Induced emf is produced in a stationary conductor due to changing magnetic field is called…..?
#45. Induced emf is produced in a stationary conductor due to changing magnetic field is called…..?
#46. The property of an electric circuit to oppose any change in the magnitude of current flow in a circuit is called…..?
#47. Unit of inductance….?
#48. Which of the following is not a factor of inductance of an inductor?
#49. Determind the total inductance of 5 inductance connected in series,each of 2H?
2 x 5= 10= nH
#50. Determind the total inductance of 5 inductance connected in series,each of 2H?
5/5= 1= n/H
#51. The current in a 200mH coil increases from 2 to 5A in 0.1s. calculate the rate of change of current?
(5-2)/0.1=30A/s
#52. A material that magnetised only very slightly is called…?
#53. Which of the device is a single excited magnetic field system?
#54. Which of the following is a strongest diamagnetic material?
#55. Th ratio of magnetisation intensity to the magnetisation force is known as….?
#56. Degaussing is the process of….?
#57. When entire flux of one coil links with the nearby coil, the coefficient of coupling is equal to…?
#58. Unit of magnetic lines of force is…..?
Recent Comments