Electrical Engineering : Magnetism And Electromagnetism QUESTIONS AND ANSWERS :: part3 : 1 to 5
Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
1.The change of cross-sectional area of conductor in magnetic field will affect |
| reluctance of conductor |
| resistance of conductor |
| (a) and (b) b >th in the same way |
| none of the above |
2.Which of the following statements is correct ? |
| The magnetic flux inside an exciting coil is lower than its outside surface |
| The magnetic flux inside an exciting coil is zero |
| The magnetic flux inside the exciting coil is greater than its outside surface |
| The magnetic flux inside the exciting coil is same as on its outside surface |
3.Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. |
| circular |
| triangular |
| rectangular |
| none of the above |
4.Magnetic moment is a |
| pole strength |
| universal constant |
| scalar quantity |
| vector quantity |
5.A permanent magnet |
| attracts some substances and repels others |
| attracts all paramagnetic substan�ces and repels others |
| attracts only ferromagnetic sub�stances |
| attracts ferromagnetic substances and repels all others |
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