The variation of magnetic susceptibility (χ) with temperature for a diamagnetic substance is best represented by:

1.    2.
3. 4.

Subtopic:  Magnetic Materials |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The variation of magnetic susceptibility (χ) with absolute temperature T for a ferromagnetic material is

Subtopic:  Curie's Law and Hysteresis (OLD NCERT) |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The relative permeability (μr) of a ferromagnetic substance varies with temperature (T) according to the curve

(1) A                              

(2) B

(3) C                              

(4) D

Subtopic:  Magnetic Materials |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The variation of the intensity of magnetisation \((I)\) with respect to the magnetising field \((H)\) in a diamagnetic substance is described by the graph:

          

1. \(OD\) 2. \(OC\)
3. \(OB\) 4. \(OA\)
Subtopic:  Magnetic Materials |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

If θ1 and θ2 be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip θ is given by 

(a) cot2θ=cot2θ1+cot2θ2

(b) tan2θ=tan2θ1-tan2θ2

(c) cot2θ=cot2θ1-tan2θ2

(d) tan2θ=tan2θ1-tan2θ2

Subtopic:  Earth's Magnetism (OLD NCERT) |
 86%
NEET - 2017
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The magnetic susceptibility is negative for

1. paramagnetic material only

2. ferromagnetic material only

3. paramagnetic and ferromagnetic materials

4. diamagnetic material only

Subtopic:  Magnetic Materials |
 94%
From NCERT
NEET - 2016
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The following figures show the arrangement of bar magnet in different configurations. Each magnet has magnetic dipole moment m. Which configuration has the highest net magnetic dipole moment?
(i) (ii) (iii) (iv)


1. (i)

2. (ii)

3. (iii)

4. (iv)

Subtopic:  Bar Magnet |
 68%
From NCERT
NEET - 2014
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

A magnetic needle suspended parallel to a 

magnetic field requires 3 J of work to turn

it through 60°. The torque needed to maintain 

the needle in this position will be

(1) 23J                     

(2) 3 J

(3) 3 J                       

(4) 32 J

Subtopic:  Bar Magnet |
 70%
From NCERT
NEET - 2012
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

There are four light-weight-rod samples; A, B, C, D separately suspended by threads. A bar magnet is slowly brought near each sample and the following observations are noted:

i. A is feebly repelled 
ii.  B is feebly attracted
iii.  C is strongly attracted
iv. D remains unaffected

Which one of the following is true?

1. C is of a diamagnetic material
2. D is of a ferromagnetic material
3. A is of a non-magnetic material
4. B is of a paramagnetic material

Subtopic:  Magnetic Materials |
 88%
From NCERT
NEET - 2011
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

Two identical bar magnets are fixed with their centres at a distance d apart. A stationary charge Q is placed at P in between the gap of the two magnets at a distance D from the centre O as shown in the figure

                           

The force on the charge Q is 

1. zero

2. directed along OP

3. directed along PO

4. directed perpendicular to the plane of the paper

Subtopic:  Bar Magnet |
 63%
From NCERT
NEET - 2010
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch