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12th Odisha Board
IMPORTANT
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A conducting plate is allowed to swing like a pendulum about a pivot and into a region of magnetic field. Eddy currents are induced in the plate when the conductor

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Important Questions on Electromagnetic Induction

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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 14
A bar magnet is released from rest along the axis of a very long and vertical copper tube. After some time the magnet will:
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 15
L, C and R stand for the inductance, capacitance and resistance respectively of LCR circuit. Which of the following expressions has the dimension of frequency?
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 16
The unit of magnetic permeability can be written as
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 17
A current of 2 A is established in an inductor of inductance 1 mH in 0.02 s. The magnetic energy stored in the inductor is
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 18
Two circular, similar and co-axial loops carry equal currents in the same direction. If the loops are brought nearer:
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 19
A coil having number of turns N and area A is rotated in a uniform magnetic field with angular velocity ω. The maximum induced emf in it is given by
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 20
When the number of turns in a coil is doubled without any change in the length of the coil, its self inductance L becomes
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12th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 12>Chapter 9 - Electromagnetic Induction>MODEL QUESTIONS>Q 1
Under what condition induced current is produced in a closed coil?