Electrical Engineering : Magnetism And Electromagnetism QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ? |
| 63.38 N/Wb |
| 633.8 N/Wb |
| 6338 N/Wb |
| 63380 N/Wb |
22.Ferrites are a sub-group of |
| non-magnetic materials |
| ferro-magnetic materials |
| paramagnetic materials |
| ferri-magnetic materials |
23.Susceptibility is positive for |
| non-magnetic substances |
| diamagnetic substances |
| ferromagnetic substances |
| none of the above |
24.Out of the following statements, concerning an electric field, which statement is not true ? |
| The electric intensity is a vector quantity |
| The electric field intensity at a point is numerically equal to the force exerted upon a charge placed at that point |
| An electric field is defined as a point in space at which an electric charge would experienc* a force |
| Unit field intensity in the exertion of a force of one newton on a charge of one coulomb |
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