Electrical Engineering : Magnetism And Electromagnetism QUESTIONS AND ANSWERS :: part3 : 11 to 15
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m ? |
| 2 AT |
| 4 AT |
| 6 AT |
| 10 AT |
12.The materials are a bit inferior conductors of magnetic flux than air. |
| ferromagnetic |
| paramagnetic |
| diamagnetic |
| dielectric |
13.The magneto-motive force is |
| the voltage across the two ends of exciting coil |
| the flow of an electric current |
| the sum of all currents embraced by one line of magnetic field |
| the passage of magnetic field through an exciting coil |
14.How does the magnetic compass needle behave in a magnetic field ? |
| It assures a position right angle to magnetic field |
| It starts rotating |
| It assures a position which follows a line of magnetic flux |
| None of the above |
15.The relative permeability of materials is not constant. |
| diamagnetic |
| paramagnetic |
| ferromagnetic |
| insulating |
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