Basic Science : Magnetic Field QUESTIONS AND ANSWERS :: part1 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Force between two identical magnets is proportional to |
| m/d |
| m2/d |
| m/d2 |
| m2/d2 |
22.The direction of magnetic field is the direction along which |
| a tiny bar magnet moves |
| an isolated south pole moves |
| an isolated north pole moves |
| a unit positive charge moves |
23.’µ’ is the symbol for |
| permittivity |
| permeability |
| conductivity |
| resistivity |
24.The relationship between relative permeability of a medium and permeability of free space is |
| µr = µr µ0 |
| µ = µ0 µr |
| µr = µ0 / µ |
| µ = µ0 / µr |
25.The south 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 |
More Magnetic Field QUESTIONS AND ANSWERS available in next pages
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