Magnetism and Matter PYQs - Last 10 Years

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Practice 21 NEET 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.

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Last 10 Years Magnetism and Matter Questions

Showing 21 of 21 filtered questions.

1Magnetism And Matter

The magnetic moment of an iron bar is \(M\). It is now bent in such a way that it forms an arc section of a circle subtending an angle of \(60^{\circ}\) at the centre. The magnetic moment of this arc section is

2Magnetism And Matter

The magnetic moment and moment of inertia of a magnetic needle as shown are, respectively, \(1.0 \times 10^{-2} \mathrm{~A} \mathrm{~m}^2\) and \(\frac{10^{-6}}{\pi^2} \mathrm{~kg} \mathrm{~m}^2\). If it completes 10 oscillations in $$10 \m...

3Magnetism And Matter

The incorrect relation for a diamagnetic material (all the symbols carry their usual meaning and \(\varepsilon\) is a small positive number) is

4Magnetism And Matter

The magnetic potential energy, when a magnetic bar of magnetic moment \(\vec{m}\) is placed perpendicular to the magnetic field \(\vec{B}\) is

5Magnetism And Matter

In the above diagram, a strong bar magnet is moving towards solenoid-2 from solenoid-1. The direction of induced current in solenoid-1 and that in solenoid-2, respectively, are through the directions:

6Magnetism And Matter

An iron bar of length \(L\) has magnetic moment \(M\). It is bent at the middle of its length such that the two arms make an angle \(60^{\circ}\) with each other. The magnetic moment of this new magnet is :

7Magnetism And Matter

In a uniform magnetic field of \(0.049 \mathrm{~T}\), a magnetic needle performs 20 complete oscillations in 5 seconds as shown. The moment of inertia of the needle is \(9.8 \times 10^{-6} \mathrm{~kg} \mathrm{~m}^2\). If the magnitude of m...

8Magnetism And Matter

A sheet is placed on a horizontal surface in front of a strong magnetic pole. A force is needed to:
A. hold the sheet there if it is magnetic.
B. hold the sheet there if it is non-magnetic.
C. move the sheet away from the pole with uniform ...

9Magnetism And Matter

Match List I with List II

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10Magnetism And Matter

The variation of susceptibility \((\chi)\) with absolute temperature ( \(\mathrm{T}\) ) for a paramagnetic material is represented as :

11Magnetism And Matter

A big circular coil of 1000 turns and average radius 10 m is rotating about its horizontal diameter at 2 rad s\(-\)1. If the vertical component of earth's magnetic field at that place is 2 \(\times\) 10\(-\)5 T and electrical resistance of ...

12Magnetism And Matter

A uniform conducting wire of length 12a and resistance 'R' is wound up as a current carrying coil in the shape of ,(i) an equilateral tringle of side 'a'(ii) A square of side 'a'The magnetic dipole moments of the coil in each case respectiv...

13Magnetism And Matter

In the product\(\overrightarrow F = q\left( {\overrightarrow v \times \overrightarrow B } \right)\)\(= q\overrightarrow v \times \left( {B\widehat i + B\widehat j + {B_0}\widehat k} \right)\)For q = 1 and $$\overrightarrow v = 2\wideha...

14Magnetism And Matter

An iron rod of susceptibility 599 is subjected to a magnetizing field of 1200 A m-1. The permeability of the material of the rod is :\(\left( {{\mu _0} = 4\pi \times {{10}^{ - 7}}Tm{A^{ - 1}}} \right)\)

15Magnetism And Matter

At a point A on the earth’s surface the angle of dip, \(\delta\) = + 25o. At a point B on the earth's surface the angle of dip, \(\delta\) = – 25o. We can interpret that :

16Magnetism And Matter

A thin diamagnetic rod is placed vertically
between the poles of an electromagnet. When
the current in the electromagnet is switched
on, then the diamagnetic rod is pushed up, out
of the horizontal magnetic field. Hence the rod
gains gravit...

17Magnetism And Matter

A 250-turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 \(\mu\)A and subjected to a magnetic field of strength 0.85 T. Work done for rotating the coil by 180o against the torque is

18Magnetism And Matter

If \(\theta\)1 and \(\theta\)2 be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip \(\theta\) is given by

19Magnetism And Matter

A bar magnet is hung by a thin cotton thread in a uniform horizontal magnetic field and is in equilibrium state. The energy required to rotate it by 60o is W. Now the torque required to keep the magnet in this new position is

20Magnetism And Matter

The magnetic susceptibility is negative for

21Magnetism And Matter

A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 weber/m2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of...