31 Year NEET Previous Questions: Electromagnetic Induction Free MCQ Practice
MCQ Practice Test & Solutions: 31 Year NEET Previous Year Questions: Electromagnetic Induction (25 Questions)
You can prepare effectively for NEET Physics Class 12 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "31 Year NEET Previous Year Questions: Electromagnetic Induction". These 25 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.
Test Highlights:
- - Format: Multiple Choice Questions (MCQ)
- - Duration: 50 minutes
- - Number of Questions: 25
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An inductor may store energy in [1990]
Detailed Solution: Question 1
The current in self inductance L = 40 mH is to beincreased uniformly from 1 amp to 11 amp in 4 milliseconds. The e.m.f. induced in the inductorduring the process is [1990]
Detailed Solution: Question 2
A magnetic field of 2 × 10–2 T acts at right anglesto a coil of area 100 cm2, with 50 turns. Theaverage e.m.f. induced in the coil is 0.1 V, when itis removed from the field in t sec. The value of t is
Detailed Solution: Question 3
A 100 millihenry coil carries a current of 1A.Energy stored in its magnetic field is [1991]
Detailed Solution: Question 4
If the number of turns per unit length of a coil ofsolenoid is doubled, the self-inductance of thesolenoid will [1991]
Detailed Solution: Question 5
A rectangular coil of 20 turns and area of crosssection 25 sq. cm has a resistance of 100Ω. If amagnetic field which is perpendicular to the planeof coil changes at a rate of 1000 tesla per second,the current in the coil is [1992]
Detailed Solution: Question 6
The total charge induced in a conducting loopwhen it is moved in a magnetic field depend on [1992]
Detailed Solution: Question 7
(taking only magnitude of e)What is the self-inductance of a coil whichproduces 5V when the current changes from 3ampere to 2 ampere in one millisecond? [1993]
Detailed Solution: Question 8
If N is the number of turns in a coil, the value ofself inductance varies as [1993]
Detailed Solution: Question 9
A conductor of length 0.4 m is moving with a speed of 7 m/s perpendicular to a magnetic field of intensity 0.9 Wb/m2. The induced e.m.f. across the conductor is [1995]
Detailed Solution: Question 10
A varying current in a coil changes from 10A tozero in 0.5 sec. If the average e.m.f induced inthe coil is 220V, the self-inductance of the coil is [1995]
Detailed Solution: Question 11
Two coils have a mutual inductance 0.005 H.The current changes in the first coil accordingto equation I = I0 sin ωt, where I0 = 10A and ω = 100π radian/sec. The maximum value of e.m.f.in the second coil is [1998]
Detailed Solution: Question 12
In an inductor of self-inductance L = 2 mH,current changes with time according to relationi = t2e–t. At what time emf is zero? [2001]
Detailed Solution: Question 13
The magnetic flux through a circuit of resistance R changes by an amount Δφ in a time Δt. Then the total quantity of electric charge Q that passes any point in the circuit during the time Δt is represented by [2004]
Detailed Solution: Question 14
As a result of change in the magnetic flux linkedto the closed loop shown in the Fig,
an e.m.f. V volt is induced in the loop. The work done (joules) in taking a charge Q coulomb once along the loop is
[2005]
Detailed Solution: Question 15
Two coils of self inductances 2 mH and 8 mH areplaced so close together that the effective fluxin one coil is completely linked with the other.The mutual inductance between these coils is [2006]
Detailed Solution: Question 16
A long solenoid has 500 turns. When a currentof 2 ampere is passed through it, the resultingmagnetic flux linked with each turn of thesolenoid is 4 ×10–3 Wb. The self- inductance ofthe solenoid is [2008]
Detailed Solution: Question 17
A rectangular, a square, a circular and an elliptical loop, all in the (x – y) plane, are moving out of a uniform magnetic field with a constant velocity, 
The magnetic field is directed along the negative z axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for [2009]
The magnetic field is directed along the negative z axis direction. The induced emf, during the passage of these loops, out of the field region, will not remain constant for [2009]Detailed Solution: Question 18
A conducting circular loop is placed in a uniformmagnetic field of 0.04 T with its planeperpendicular to the magnetic field. The radiusof the loop starts shrinking at 2 mm/s. The induced emf in the loop when the radius is 2 cmis [2009]
Detailed Solution: Question 19
where A is the area of the loop.
A conducting circular loop is placed in a uniform magnetic field, B = 0.025 T with its plane perpendicular to the loop. The radius of the loop is made to shrink at a constant rate of 1 mm s–1. The induced e.m.f. when the radius is 2 cm, is [2010]
Detailed Solution: Question 20
The current i in a coil varies with time as shown in the figure. The variation of induced emf with time would be [2011]
Detailed Solution: Question 21
A coil of resistance 400Ω is placed in a magneticfield. If the magnetic flux φ(wb) linked with thecoil varies with time t (sec) as φ = 50t2 + 4. Thecurrent in the coil at t = 2 sec is : [2012]
Detailed Solution: Question 22
In a coil of resistance 10 Ω, the induced current developed by changing magnetic flux through it, is shown in figure as a function of time. The magnitude of change in flux through the coil in Weber is : [2012M]
Detailed Solution: Question 23
∵ Change in flux (Δφ ) = q × R
A wire loop is rotated in a magnetic field. Thefrequency of change of direction of the inducede.m.f. is [NEET 2013]
Detailed Solution: Question 24
A current of 2.5 A flows through a coil ofinductance 5 H. The magnetic flux linked withthe coil is [NEET Kar. 2013]
Detailed Solution: Question 25
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