Refer to BITSAT Physics Electromagnetic Induction MCQs provided below. BITSAT Full Syllabus Physics MCQs with answers available in Pdf for free download. The MCQ Questions for Full Syllabus Physics with answers have been prepared as per the latest syllabus, BITSAT books and examination pattern suggested in Full Syllabus by BITSAT, NCERT and KVS. Multiple Choice Questions for Electromagnetic Induction are an important part of exams for Full Syllabus Physics and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for BITSAT Full Syllabus Physics and also download more latest study material for all subjects
MCQ for Full Syllabus Physics Electromagnetic Induction
Full Syllabus Physics students should refer to the following multiple-choice questions with answers for Electromagnetic Induction in Full Syllabus. These MCQ questions with answers for Full Syllabus Physics will come in exams and help you to score good marks
Electromagnetic Induction MCQ Questions Full Syllabus Physics with Answers
Question: A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating; It is very difficult to stop. But if an aluminium plate is placed near to the coil, it stops. This is due to :
- a) Developement of air current when the plate is placed
- b) Induction of electrical charge on the plate
- c) Shielding of magnetic lines of force as aluminium is a paramagnetic material.
- d) Electromagnetic induction in the aluminium plate giving rise to electromagnetic damping.
Answer: Electromagnetic induction in the aluminium plate giving rise to electromagnetic damping.
Question: A conducting circular loop is placed in a uniform magnetic field of 0.04 T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2 mm/s. The induced emf in the loop when the radius is 2 cm is
- a) 4.8 π μV
- b) 0.8 π μV
- c) 1.6 π μV
- d) 3.2 π μV
Answer: 3.2 π μV
Question: A conducting square loop is placed in a magnetic field B with its plane perpendicular to the field. The sides of the loop start shrinking at a constant rate a. The induced emf in the loop at an instant when its side is ‘a’ is
- a) 2aαB
- b) a2αB
- c) 2a2αB
- d) aαB
Answer: 2aαB
Question: A coil 10 turns and a resistance of 20Ω is connected in series with B.G. of resistance 30Ω. The coil is placed with its plane perpendicular to the direction of a uniform magnetic field of induction 10–2 T. If it is now turned through an angle of 60° about an axis in its plane. Find the charge induced in the coil. (Area of a coil = 10–2 m²)
- a) 2 × 10–5 C
- b) 3.2 × 10–5 C
- c) 1 × 10–5 C
- d) 5.5 × 10–5 C
Answer: 1 × 10–5 C
Question: When current in a coil changes from 5 A to 2 A in 0.1 s, average voltage of 50 V is produced The self - inductance of the coil is :
- a) 6 H
- b) 0.67 H
- c) 3 H
- d) 1.67 H
Answer: 1.67 H
Question: Eddy currents are produced when
- a) A metal is kept in varying magnetic field
- b) A metal is kept in steady magnetic field
- c) A circular coil is placed in a magnetic field
- d) Through a circular coil, current is passed
Answer: A metal is kept in varying magnetic field
Question: Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross-sectional area A = 10 cm2 and length = 20 cm. If one of the solenoid has 300 turns and the other 400 turns, their mutual inductance is (μμ = 4π × 10 –7 Tm A–1)
- a) 2.4π × 10–5 H
- b) 4.8π × 10–4 H
- c) 4.8π × 10–5 H
- d) 2.4π × 10–4 H
Answer: 2.4π × 10–4 H
Question: The laws of electromagnetic induction have been used in the construction of a
- a) Galvanometer
- b) Voltmeter
- c) Electric motor
- d) Generator
Answer: Voltmeter
Question: A metal rod of length 1 m is rotated about one of its ends in a plane right angles to a field of inductance 2.5 × 10–3 Wb/m². If it makes 1800 revolutions/ min. Calculate induced e.m.f. between its ends.
- a) 2.471 V
- b) 3.171 V
- c) 0.471 V
- d) 1.771 V
Answer: 0.471 V
Question: The back emf induced in a coil, when current changes from 1 ampere to zero in one millisecond, is 4 volts, the self inductance of the coil is
- a) 1 henry
- b) 4 henry
- c) 10–3 henry
- d) 4 × 10–3 henry
Answer: 4 × 10–3 henry
Question: Two solenoids of same cross-sectional area have their lengths and number of turns in ratio of 1 : 2. The ratio of self-inductance of two solenoids is
- a) 1 : 1
- b) 1 : 2
- c) 2 : 1
- d) 1 : 4
Answer: 1 : 2
Question: Lenz’s law is a consequence of the law of conservation of
- a) Charge
- b) Mass
- c) Energy
- d) Momentum
Answer: Energy
Question: A 100 millihenry coil carries a current of 1 ampere. Energy stored in its magnetic field is
- a) 0.5 J
- b) 1 J
- c) 0.05 J
- d) 0.1 J
Answer: 0.05 J
Question: A generator has an e.m.f. of 440 Volt and internal resistance of 4000 hm. Its terminals are connected to a load of 4000 ohm. The voltage across the load is
- a) 220 volt
- b) 440 volt
- c) 200 volt
- d) 400 volt
Answer: 400 volt
Question: A coil having number of turns N and cross-sectional area A is rotated in a uniform magnetic field B with an angular velocity ω. The maximum value of the emf induced in it is –
- a)
- b) NBAω
- c)
- d) BAw2
Answer: NBAω
Question: A coil of resistance 400Ω is placed in a magnetic field. If the magnetic fluxΦ (wb) linked with the coil varies with time t (sec) as Φ = 50t2 + 4. The current in the coil at t = 2 sec is
- a) 0.5 A
- b) 0.1 A
- c) 2 A
- d) 1 A
Answer: 0.5 A
Question: The loop shown moves with a velocity v in a uniform magnetic field of magnitude B, directed into the paper. The potential difference between P and Q is e.Then :
- a)
- b) e = Blv
- c) P is negative with respect to Q
- d) Q is positive with respect to P.
Answer:
Question: Eddy currents are produced when
- a) A metal is kept in varying magnetic field
- b) A metal is kept in steady magnetic field
- c) A circular coil is placed in a magnetic field
- d) Through a circular coil, current is passed
Answer: A metal is kept in varying magnetic field
Question: A 100 millihenry coil carries a current of 1 ampere. Energy stored in its magnetic field is
- a) 0.5 J
- b) 1 J
- c) 0.05 J
- d) 0.1 J
Answer: 0.05 J
Question: Lenz’s law is a consequence of the law of conservation of
- a) Charge
- b) Mass
- c) Energy
- d) Momentum
Answer: Energy
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BITSAT Full Syllabus Physics Electromagnetic Induction MCQs
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MCQs for Physics BITSAT Full Syllabus Electromagnetic Induction
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Electromagnetic Induction MCQs Physics BITSAT Full Syllabus
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Electromagnetic Induction BITSAT Full Syllabus MCQs Physics
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BITSAT MCQs Physics Full Syllabus Electromagnetic Induction
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Multiple Choice Questions (MCQs) for Electromagnetic Induction Full Syllabus Physics are objective-based questions which provide multiple answer options, and students are required to choose the correct answer from the given choices.