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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 21 questions
- MCQmediumElectromagnetic Induction
A conducting circular loop of area 1.0 m² is placed perpendicular to a magnetic field which varies as B = sin(100 t) Tesla. If the resistance of the loop is 100 Ω, then the average thermal energy dissipated in the loop in one period is ______J.
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JEE Mains 202621 January Morning Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
Three identical coils C₁, C₂ and C₃ are closely placed such that they share a common axis. C₂ is exactly midway. C₁ carries current I in anti-clockwise direction while C₃ carries current I in clockwise direction. An induced current flows through C₂ will be in clockwise direction when
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JEE Mains 202622 January Morning Shift
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
Open question & full solution → - 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 conducting rod slides with constant velocity on two rails making an angle 60° in a uniform magnetic field. If the motional emf varies as E=ctⁿ, the value of n is:
JEE Mains 2025 29 Jan Evening Shift
Open question & full solution → - MCQmediumElectromagnetic Induction
A coil is placed perpendicular to a magnetic field of 5000 T. When the field is changed to 3000 T in 2 s, an induced emf of 22 V is produced in the coil. If the diameter of the coil is 0.02 m, then the number of turns in the coil is:
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JEE Mains 2024 31 Jan Morning Shift
Open question & full solution → - IntegermediumElectromagnetic Induction
An insulated copper wire of 100 turns is wound on a wooden core of cross-sectional area 24 cm² and connected to a total circuit resistance of 12 Ω. The axial magnetic field changes from 1.5 T in one direction to 1.5 T in the opposite direction. Find the charge that flows, in mC.
13 April 2023 Evening Shift
Open question & full solution → - NumericmediumElectromagnetic Induction
A square loop of side 10 cm and resistance 0.7 Ω is placed vertically in east-west plane. A uniform magnetic field of 0.20 T is set up across the plane in north east direction. The magnetic field is decreased to zero in 1 s at a steady rate. Then, magnitude of induced emf is √x × 10⁻³ V. The value of x is ________.
JEE Mains 2024 29 Jan Morning Shift
Open question & full solution → - MatchmediumElectromagnetic Induction
List-I contains four conducting loops lying in the XY plane, as shown in the figures. The loops are rotating about Z axis passing through the point O with time period T in clockwise direction. The region x > 0 contains a uniform magnetic field B in the +z direction. List-II contains the qualitative variation of the induced current i(t) for each of these loops. Choose the option which describes the correct match between the entries in List-I to those in List-II. Image
List 1
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List 2
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JEE Advanced2026Paper 1
Open question & full solution → - MCQmediumElectromagnetic Induction
A rectangular loop of length 2.5 m and width 2 m is placed at 60° to a magnetic field of 4 T. The loop is removed from the field in 10 sec. The average emf induced in the loop during this time is
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JEE Mains 2024
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