Electrical Engineering : Electromagnetic Induction QUESTIONS AND ANSWERS :: part1 : 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 direction of incViced e.m.f. can be found by |
| Laplace's law |
| Lenz's law |
| Fleming's right hand rule |
| Kirchhoff s voltage law |
2.The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the in ductance will be |
| 3 mH |
| 12 mH |
| 24mH |
| 48mH |
3.Two coils have inductances of 8 mH and 18 mH and a co-efficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be |
| 32 mH |
| 38 mH |
| 40 mH |
| 48 mH |
4.As per Faraday's laws of electromagnetic induction, an e.m.f. is induced in a conductor whenever it |
| lies perpendicular to the magnetic flux |
| lies in a magnetic field |
| cuts magnetic flux |
| moves parallel to the direction of the magnetic field |
5.Which of the following is not a unit of inductance ? |
| Henry |
| Coulomb/volt ampere |
| Volt second per ampere |
| All of the above |
More Electromagnetic Induction QUESTIONS AND ANSWERS available in next pages
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