NEET Physics is the scoring paper in the medical entrance examination. Here, you will discover the NEET Physics MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Physics objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Physics AC generator Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.
MCQs on AC generator
1. An alternator is an electromechanical ac generator.
(a) True
(b) False
Answer
Answer: (B) False
2. In A.C generator increasing the no. of turns in the coil
(a) Decreases the Electromotive force (EMF)
(b) Electromotive force (EMF) remains the same
(c) Increases the Electromotive force (EMF)
(d) Electromotive force (EMF) becomes zero
Answer
Answer: (c) Increases the Electromotive force (EMF)
3. The Electromotive force (EMF) developed by the generator depends upon
(a) Area of rotating wire
(b) length of rotating wire
(c) Radius of wire
(d) size of magnet
Answer
Answer: (b) length of rotating wire
4. The metal detectors installed at airports and other places for security purpose are based on the principle of
(a) potential difference
(b) electromagnetic difference
(c) electromagnetic induction
(d) potential energy
Answer
Answer: (c) electromagnetic induction
5. If the coil is placed perpendicular to field lines then the number of lines passing through the coil is
(a) Minimum
(b) maximum
(c) zero
(d) maybe maximum or minimum
Answer
Answer: (b) maximum
6. In alternative current generator, AC current reverses its direction
(a) 10 times per second
(b) 20 times per second
(c) 60 times per second
(d) 50 times per second
Answer
Answer: (d) 50 times per second
7. Name two main parts of an AC generator
(a) Stator
(b) Rotor
(c) Both 1 and 2
(d) None of these
Answer
Answer: (c) Both 1 and 2
8. AC generator converts
(a) Mechanical energy to electrical energy
(b) Electrical energy to mechanical energy
(c) Heat energy to mechanical energy
Answer
Answer: (a) Mechanical energy to electrical energy
9. What replacement is required to convert an AC generator to DC generator?
(a) Concave magnets with horseshoe magnets
(b) Armature with coil
(c) Slip rings with split rings
(d) None of the above
Answer
Answer: (c) Slip rings with split rings
10. The direction of induced emf or current is indicated by
(a) Fleming’s left-hand rule
(b) Fleming’s right-hand rule
(c) Faraday’s law of electromagnetic induction
(d) None of these
Answer
Answer: (b) Fleming’s right-hand rule