Electromagnetic Induction PYQs - Last 10 Years

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PhysicsElectromagnetism2017-2026

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Practice 175 MHT CET Physics questions from Electromagnetic Induction. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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2019-2026

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Last 10 Years Electromagnetic Induction Questions

Showing 25 of 175 filtered questions.

1Electromagnetic Induction

The magnetic flux through a coil of resistance '\(R\)' changes by an amount '\(\Delta \phi\)' in time '\(\Delta \mathrm{t}\)'. The total quantity of induced electric charge '\(\mathrm{Q}\)' is

2Electromagnetic Induction

. If the current of '\(I\)' A gives rise to a magnetic flux '\(\phi\)' through a coil having '\(N\)' turns then mangetic energy stored in the medium surrounding the coil is

3Electromagnetic Induction

A coil has an area \(0.06 \mathrm{~m}^2\) and it has 600 turns. After placing the coil in a magnetic field of strength \(5 \times 10^{-5} \mathrm{Wbm}^{-2}\), it is rotated through \(90^{\circ}\) in 0.2 second. The magnitude of average e.m....

4Electromagnetic Induction

A rectangular loop \(\mathrm{PQMN}\) with movable arm \(\mathrm{PQ}\) of length \(12 \mathrm{~cm}\) and resistance \(2 \Omega\) is placed in a uniform magnetic field of \(0.1 \mathrm{~T}\) acting perpendicular to the plane of the loop as sh...

5Electromagnetic Induction

A current \(I=10 \sin (100 \pi t)\) ampere, is passed in a coil which induces a maximum emf \(5 \pi\) volt in neighbouring coil. The mutual inductance of two coils is

6Electromagnetic Induction

A current 'I' produces a magnetic flux '\(\phi\)' per turn in a coil of '\(n\)' turns. Self inductance of the coil is '\(L\)'. The relation between them is

7Electromagnetic Induction

The magnitude of flux linked with coil varies with time as \(\phi=3 t^2+4 t+7\). The magnitude of induced e.m.f. at \(t=2 \mathrm{~s}\) is

8Electromagnetic Induction

At what rate a single conductor should cut the magnetic flux so that current of \(1.5 \mathrm{~mA}\) flows through it when a resistance of \(5 \Omega\) is connected across its ends?

9Electromagnetic Induction

Eddy currents are produced when

10Electromagnetic Induction

A conducting loop of resistance 'R' is moved to magnetic field, the total induced charge depends upon

11Electromagnetic Induction

A circuit has self-inductance 'L' H and carries a current 'I' A. To prevent sparking when the circuit is switched off, a capacitor which can withstand 'V' volt is used. The least capacitance of the capacitor connected across the switch must...

12Electromagnetic Induction

The self inductance of solenoid of length \(31.4 \mathrm{~cm}\), area of cross section \(10^{-3} \mathrm{~m}^2\) having total number of turns 500 will be nearly [\(\mu_0=4 \pi \times 10^{-7}\) SI unit]

13Electromagnetic Induction

A wire of length 1 m is moving at a speed of 2 m/s perpendicular homogenous magnetic field of 0.5 T. The ends of the wire are joined to resistance 6\(\Omega\). The rate at which work is being done to keep the wire moving at that speed is

14Electromagnetic Induction

A circular coil of radius '\(R\)' has '\(N\)' turns of a wire. The coefficient of self induction of the coil will be ( \(\mu_0=\) permeability of free space)

15Electromagnetic Induction

the magnetic flux (in weber) in a closed circuit of resistance \(20 \Omega\) varies with time \(t\) second according to equation \(\phi=5 t^2-6 t+9\). The magnitude of induced current at \(t=0.2\) second is

16Electromagnetic Induction

A coil of radius '\(\mathrm{r}\)' is placed on another coil (whose radius is '\(\mathrm{R}\)' and current through it is changing) so that their centres coincide. ( \(R > r\) ). If both coplanar, then the mutual inductance between them is pr...

17Electromagnetic Induction

A wire of length '\(L\)'; having resistance '\(R\)' falls from a height '\(\ell\)' in earth's horizontal magnetic field '\(B\)'. The current through the wire is ( \(\mathrm{g}=\) acceleration due to gravity)

18Electromagnetic Induction

The magnetic potential energy stored in a certain inductor is \(25 \mathrm{~mJ}\), when the current in the inductor is \(50 \mathrm{~mA}\). This inductor is of inductance

19Electromagnetic Induction

A straight conductor of length 0.6 M is moved with a speed of 10 ms\(^{-1}\) perpendicular to magnetic field of induction 1.2 weber m\(^{-2}\). The induced e.m.f. across the conductor is

20Electromagnetic Induction

Two conducting wire loops are concentric and lie in the same plane. The current in the outer loop is clockwise and increasing with time. The induced current in the inner loop is

21Electromagnetic Induction

A metal wire of length \(2500 \mathrm{~m}\) is kept in east-west direction, at a height of \(10 \mathrm{~m}\) from the ground. If it falls freely on the ground then the current induced in the wire is (Resistance of wire $$=25 \sqrt{2} \Omeg...

22Electromagnetic Induction

Metal rings $P$ and $Q$ are lying in the same plane, where current I is increasing steadily. The induced current in metal rings is shown correctly in figure

23Electromagnetic Induction

A coil of \(n\) turns and resistance \(R \Omega\) is connected in series with a resistance \(\frac{R}{2}\). The combination is moved for time \(t\) second through magnetic flux \(\phi_1\) to \(\phi_2\). The induced current in the circuit is

24Electromagnetic Induction

The length of solenoid is \(I\) whose windings are made of material of density \(D\) and resistivity \(\rho\). The winding resistance is \(R\). The inductance of solenoid is [\(m=\) mass of winding wire, \(\mu_0=\) permeability of free spac...

25Electromagnetic Induction

2. Two coils have a mutual inductance of 0.01 H . The current in the first coil changes according to equation, $I=5 \sin 200 \pi t$. The maximum value of emf induced in the second coil is