Electrical Engineering : Magnetism And Electromagnetism QUESTIONS AND ANSWERS :: part1 : 16 to 20
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
16.When an iron piece is placed in a magnetic field |
| the magnetic lines of force will bend away from their usual paths in order to go away from the piece |
| the magnetic lines of force will bend away from their usual paths in order to pass through the piece |
| the magnetic field will not be affected |
| the iron piece will break |
17.Paramagnetic materials have relative permeability |
| slightly less than uuity |
| equal to unity |
| slightly more than unity |
| equal to that ferromagnetic mate rials |
18.Ferrites are materials. |
| paramagnetic |
| diamagnetic |
| ferromagnetic |
| none of the above |
19.The materials having low retentivity are suitable for making |
| weak magnets |
| temporary magnets |
| permanent magnets |
| none of the above |
20.The unit of relative permeability is |
| henry/metre |
| henry |
| henry/sq. m |
| it is dimensionless |
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