Electrical Engineering Questions And Answers :: Electromagnetic Induction: part1

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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 2014 and IES 2014 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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