Electromagnetic Induction Mcqs
Our collections of Multiple choice questions and answers focuses on study of Electromagnetic Induction in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Electromagnetic Induction in Physics comprehensively.
32. The practical illustration of the phenomenon of mutual induction is
A.C generator
D.C dynamo
Induction coil
Transformer
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33. The self-inductance of a solenoid is increased when a soft iron core is inserted into it. This is because the soft iron core
Decreases the resistance of the solenoid
Reduces the effect of eddy current
Improves the flux linkage between the turns of the coil
Increases the mutual inductance between the solenoid and the core
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34. Transformer works on the principle of
Lenzs law
Faradays law
Mutual induction
Law of conservation of power
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35. Weber is the unit of
Magnetic field intensity
Magnetic induction
Magnetic flux
Self-inductance
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36. When the motor is at its maximum speed then back emf will be
Maximum
Zero
Intermediate values
No back emf
37. Which of the following uses electric energy and does not convert it into any other form?
Transformer
Motor
D.C generator
A.C generator
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38. Which of the following works on torque on the current carrying conductor placed in magnetic field.
Galvanometer
Ammeter
Voltmeter
All of the above
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39. Which one of the following devices does not function like an electric motor?
Galvanometer
Ammeter
Voltmeter
Transformer
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40. Which one of the following functions like a motor?
Galvanometer
Ammeter
Voltmeter
All of above
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