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Magnetic Flux,Faraday's Laws of Electromagnetic Induction and Lenz's Law questions with solutions
Practice Electromagnetic Induction for JEE Main, JEE Advanced, NEET, and Classes 11–12. Attempt each question, then open it for the full solution.
Showing 1–10 of 68 questions
- IntegermediumElectromagnetic Induction
A conducting circular loop is in a uniform magnetic field of 0.4 T perpendicular to its plane. Its radius increases at a constant rate 1 mm s⁻¹. When the radius is 2 cm, the induced emf is ______ μV.
JEE Mains12 April 2023Shift 1Morning Shift
Open question & full solution → - IntegermediumElectromagnetic Induction
A square coil of area 70 cm² and 600 turns rotates in a magnetic field B = 0.4 T. It completes 500 revolutions per minute. Find the instantaneous emf, in volts, when the plane of the coil is inclined at 60° to the field. Take π = 22/7.
JEE MainsJEE Advanced
Open question & full solution → - MCQeasyElectromagnetic Induction
A square loop of side 15 cm being moved towards right at a constant speed of 2 cm/s as shown in figure. The front edge enters the 50 cm wide magnetic field at t = 0. The value of induced emf in the loop at t = 10 s will be :
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JEE Mains 2024 09 Apr Evening Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
A coil is placed in a magnetic field such that its plane is perpendicular to the field. Magnetic flux through the coil can be changed by: A. changing the magnitude of B, B. changing the area of the coil within the field, C. changing the angle between the field and the plane of the coil, D. abruptly reversing the field direction without changing its magnitude. Choose the most appropriate answer.
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JEE MainsJEE Advanced
Open question & full solution → - NumericmediumElectromagnetic Induction
A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad/s in a magnetic field of 0.5T perpendicular to the axis of rotation. When the loop is rotated by 30° from the horizontal position, the induced EMF is 15.4 mV. The radius of the loop is ______ mm.
(Take π = 22/7)
JEE Mains 202622 January Evening Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
A conducting rod of length L moves with speed v in a uniform magnetic field B such that the rod, velocity and field are mutually perpendicular. The rod is isolated. After electrostatic equilibrium is established, what is the magnitude of the electric field inside the rod?
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JEE MainsNEET
Open question & full solution → - Multi-correctmediumElectromagnetic Induction
A conducting loop of resistance R is subjected to a magnetic flux that changes from Φ₁ to Φ₂ in a finite time. Self-inductance is negligible. Select the correct statements.
Select all that apply
JEE MainsNEET
Open question & full solution → - MCQmediumElectromagnetic Induction
Four graphs I–IV show how induced emf varies with time for different generators. Which graph(s) may represent an alternating emf? [Image]
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NEET 2019NEET Previous Year
Open question & full solution → - Multi-correctmediumElectromagnetic Induction
A straight conducting rod moves through a uniform magnetic field with velocity perpendicular to the field. Which statements are correct?
Select all that apply
JEE MainsNEET
Open question & full solution → - IntegermediumElectromagnetic Induction
A circular conducting loop of radius 20 cm and resistance 2 Ω is placed in a spatially uniform magnetic field whose magnitude varies with time as B(t) = 2t²+2t+3 tesla. The plane of the loop is perpendicular to the magnetic field. At t = 3 s, the induced current is α /50 A. Taking π = 22 / 7, find α.
JEE Mains 2026 5 April Evening Shift
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