Basic Science : Magnetic Field QUESTIONS AND ANSWERS :: part1 : 26 to 30
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
26.The value of the relative permeability of air is |
| 4π 10-7 |
| 0 |
| -1 |
| 1 |
27.The north pole of the earth’s magnetic field |
| is at the centre of the earth |
| lies along the equatorial line |
| lies in the northern hemisphere |
| lies in the southern hemisphere |
28.The dimension of µr is |
| ML0 T -1 |
| LT -1 |
| HM -1 |
| nil |
29.The magnetic axis of a magnet is |
| perpendicular to the length of the magnet |
| along the line joining the poles |
| the direction of zero magnetic flux |
| a line of zero moment |
More Magnetic Field QUESTIONS AND ANSWERS available in next pages
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