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In electromagnetic induction, the induced charge in a coil is independent of

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Important Questions on Electromagnetic Induction

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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 2

A magnet is brought towards a coil (i) speedily (ii) slowly, then the induced emf/induced charge will be respectively

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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 3
Consider a coil of area 10 cm2 and 10 turns with a magnetic field directed perpendicular to the plane. Magnetic field is changing at the rate of 108 Gauss s-1. The resistance of the coil is 20 Ω. The current in the coil will be
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 4
A coil having 500 square loops each of side 10 cm is placed normal to a magnetic field which increases at the rate of 1.0 T s-1. The induced emf in volt is
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 5
A coil having an area 2 m2 is placed in a magnetic field which changes from 1 Wb m-2 to 4 Wb m-2 in an interval of 2 s. The emf induced in the coil will be
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 6
A coil of 40 Ω resistance, 100 turns and radius 6 mm is connected to the ammeter of resistance 160 Ω. Coil is placed perpendicular to the magnetic field. When the coil is taken out of the field, 32 μC charge flows through it. The intensity of magnetic field will be
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 7
The magnetic flux linked with a coil, in Weber, is given by the equation ϕ=3t2+4t+9 Wb. Then, the magnitude of induced emf at t=2 s will be
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 8
A coil has an area of 0.05 m2 and it has 800 turns. It is placed perpendicularly in a magnetic field of strength 4×10-5 Wb m-2, it is rotated through 90° in 0.1 s. The average emf induced in the coil is
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JEE Advanced
IMPORTANT
Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 5 - Electromagnetic Induction>Objective Problems [ Level 1 ]>Q 9
In a magnetic field of 0.05 T, area of a coil changes from 101 cm2 to 100 cm2 without changing the resistance which is 2 Ω. The amount of charge that flows during this period is