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Magnetism and Matter PYQs - Last 10 Years

TS EAMCET / Physics / Electromagnetism / 28 recent questions

PhysicsElectromagnetism2016-2025

Practice 28 TS EAMCET Physics questions from Magnetism and Matter. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

28
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Physics / Electromagnetism
2020-2025
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22
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2021-2025
28
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2016-2025

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MCQ100%

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22 in last 5 years28 in last 10 years

Last 10 Years Magnetism and Matter Questions

Showing 28 of 28 filtered questions.

1Magnetism And Matter
A short bar magnet of magnetic moment $2.5 \mathrm{Am}^2$ is kept in a uniform magnetic field of $4 \times 10^{-5} \mathrm{~T}$. The work done in moving the magnet from its most stable position to most unstable position is
MCQ+1 / -02025
2Magnetism And Matter
At a certain place in the magnetic meridian the Earth's magnetic field is twice its vertical component. The ratio of horizontal component of Earth's magnetic field and the total magnetic field of the Earth at the place is
MCQ+1 / -02025
3Magnetism And Matter
The magnetic field at a point $P$ on the axis of a short bar magnet of magnetic moment $M$ is $B$. If another short bar magnet of magnetic moment 2 M is placed on the first magnet such that their axes are perpendicular and their centres coi...
MCQ+1 / -02025
4Magnetism And Matter
If the magnetic susceptibility of a substance is 0.6 , then the ratio of permeability of the substance and permeability of free space is
MCQ+1 / -02025
5Magnetism And Matter
If $B_V$ and $B_H$ are respectively the vertical and horizontal components of the Earth's magnetic field at a place where the angle of $\operatorname{dip}$ is $60^{\circ}$, then the total magnetic field at that place is
MCQ+1 / -02025
6Magnetism And Matter
The most exotic diamagnetic materials are
MCQ+1 / -02024
7Magnetism And Matter
If a bar magnet of moment $10^{-4} \mathrm{Am}^2$ is kept in a uniform magnetic field of $12 \times 10^{-3} \mathrm{~T}$ such that it makes angle of $30^{\circ}$ with the direction of magnetic field, then the torque acting on the magnet is
MCQ+1 / -02024
8Magnetism And Matter
The magnetising field which produces a magnetic flux of $22 \times 10^{-6} \mathrm{~Wb}$ in a metal bar of area of cross-section $2 \times 10^{-5} \mathrm{~m}^{2}$ is (susceptibility of the metal $=699$ )
MCQ+1 / -02024
9Magnetism And Matter
A short bar magnet placed in a uniform magnetic field making an angle with the field experiences a torque.If the angle made by the magnet with field is changed from $30^{\circ}$ to $45^{\circ}$, the torque on the magnet
MCQ+1 / -02024
10Magnetism And Matter
If $\chi$ is the susceptibility and $\mu_r$ is the relative permeability of a ferromagnetic substance, then
MCQ+1 / -02023
11Magnetism And Matter
A bar magnet of magnetic moment $2 \mathrm{~A}-\mathrm{m}^2$ lies aligned with the direction of a uniform magnetic field of 0.3 T . The amount of work required by an external torque to turn the magnet so as to align its magnetic moment norm...
MCQ+1 / -02023
12Magnetism And Matter
The expression for the magnetic energy stored in a solenoid of length $L$, in terms of magnetic field $B$ and area $A$ is
MCQ+1 / -02023
13Magnetism And Matter
materials suitable for permanent magnets, must have which of the following properties?
MCQ+1 / -02023
14Magnetism And Matter
The period of oscillation of a bar magnet at a place is 2 s . At the same place, the period of oscillation of another identical bar magnet whose magnetic moment is 4 times so that of first magnet is
MCQ+1 / -02023
15Magnetism And Matter
A bar magnet has coercivity $4 \times 10^3 \mathrm{Am}^{-1}$. It is placed inside a solenoid of 12 cm length and 60 turns. The current that should be passed through the solenoid to demagnetise, the bar magnet is
MCQ+1 / -02023
16Magnetism And Matter
The magnetic susceptibility of ferromagnetic materials is
MCQ+1 / -02023
17Magnetism And Matter
An iron bar having a cross-sectional area of $2 \times 10^{-5} \mathrm{~m}^2$ and magnetising field of $2400 \mathrm{~A} / \mathrm{m}$ produce a magnetic flux $2.4 \pi \times 10^{-5} \mathrm{~Wb}$. What will be the value of permeability $\m...
MCQ+1 / -02022
18Magnetism And Matter
In the magnetic meridian of a certain place, the horizontal component of the earth's magnetic field is 86.6 G (Gauss) and the magnetic field of earth is 100 G (Gauss). The the dip angle is
MCQ+1 / -02022
19Magnetism And Matter
A thin magnetic needle is placed in a magnetic field of 200 G with its axis at $30^{\circ}$ to the direction of the field. Find the magnetic moment of the needle, if it experiences a torque of 0.012 Nm in this field.
MCQ+1 / -02022
20Magnetism And Matter
The magnitude of axial field due to a bar magnet at a distance of 1 m , is found to be $5 \times 10^{-8} \mathrm{~T}$. The magnetic moment of the bar magnet is $\left(\mu_0=4 \pi \times 10^{-7}\right)$
MCQ+1 / -02022
21Magnetism And Matter
A planet has magnetic dipole moment of $27 \times 10^{22} \mathrm{~A}-\mathrm{m}^2$. If the radius of the planet is 300 km , what would be the magnetic field at its equator? $\left(\right.$ use,$\left.\frac{\mu}{4 \pi}=10^{-7}\right)$
MCQ+1 / -02022
22Magnetism And Matter
Assertion (A) The magnetic field lines are continuous and form closed loops.
Reason (R) Magnetic monopole does not exist.
The correct option among the following is
MCQ+1 / -02022
23Magnetism And Matter
A short bar magnet placed with its axis at $30^{\circ}$ with an external field of 800 G experiences a torque of 0.016 Nm . The magnetic moment of the bar magnet is
MCQ+1 / -02020
24Magnetism And Matter
Which of the following is desirable for making permanent magnets?
MCQ+1 / -02020
25Magnetism And Matter
Let $m$ and $r$ are the dipole moment and radius of earth respectively. Then, the earth's magnetic field at the equator is
MCQ+1 / -02020
26Magnetism And Matter
A solenoid has a core of a material with relative permeability $\frac{800}{\pi}$. The windings of the solenoid are insulated from the core and carry current of 2 A . If the number of turns is 1000 per metre, find the magnetic field $B$.
MCQ+1 / -02020
27Magnetism And Matter
If relative permeability of iron is 5500 , then its susceptibility is
MCQ+1 / -02020
28Magnetism And Matter
Two short magnets of equal dipole moments $M$ are fastened perpendicularly at their centres which lies at origin. Let two magnets lie along $X$-axis and $Y$-axis, respectively.
The magnitude of the magnetic field at a distance $R$ from the ...
MCQ+1 / -02020