CUET · PHYSICS · PYQ PAPER 2025
Which of the following properties are desired in materials for permanent magnets ?
(A) High retentivity
(B) High coercivity
(C) High permeability
(D) low permeability
Choose the correct answer from the options given below:
- A (A) and (D) only
- B (B) and (C) only
- C (A), (B) and (C) only
- D (A) and (C) only
Answer & Solution
Correct Answer
(C) (A), (B) and (C) only
Step-by-step Solution
Detailed explanation
The desired properties for materials for permanent magnets are high retentivity, high coercivity, and high permeability. Therefore, options (A), (B), and (C) are correct. The correct answer is (A), (B) and (C) only.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- Electrostatic shielding is the phenomenon of protecting a certain region of space from :CUET 2023 Easy
- In the given circuit, \( R_1 = 6 \Omega \), \( R_2 = 3 \Omega \), \( C_1 = 4 \mu F \) and \( C_2 = 5 \mu F \). When key K is closed, the charge stored in \( C_1 \) is
CUET 2025 Hard - The magnetic field produced at the centre of circular loop of diameter 4 cm is \( 6.28 \times 10^{-5} \text{ T} \). The current required to flow in the loop is : (\( \mu_0 = 4\pi \times 10^{-7} \text{ N A}^{-2} \))CUET 2023 Medium
- A proton, a deuteron and an alpha particle have the same kinetic energy and move in a uniform magnetic field perpendicular to their direction of motion. The ratio of the radii of their circular paths is :CUET 2025 Medium
- A ray incident at 50° on one refracting surface of a prism of angle 60°, suffers a deviation of 40°. The angle of emergence is:CUET 2023 Medium
- A parallel plate air capacitor is charged, and then the battery is disconnected. Now on inserting a dielectric between the plates of the capacitor, which of the following change:
1. potential difference between the plates
2. charge on the plates
3. electric field between the plates
4. energy stored in the capacitor
Choose the correct answer from the options given below:CUET 2025 Medium
More PYQs from CUET
- Arrange the following historical events in the history of life in chronological order?
(A) Natural selection
(B) Self-replicating molecules
(C) Eukaryotic cell
(D) Prokaryotic cell
Choose the correct answer from the options given below:CUET 2025 Medium - Decomposition of \(H _2 O _2\) follows a first order reaction.
In 50 min , the concentration of \(H _2 O _2\) decreases from 0.5 to 0.125 M.
When the concentration of \(H _2 O _2\) reaches 0.05 M.
the rate of formation of \(O _2\) will be (Given \(\log 2=0.3010\) ) :CUET 2023 Easy - The product \(( Y )\) in the benzoylation of aniline is
\(C_6 H_5 NH_2+C_6 H_5 COCl \xrightarrow{\text { Benzoylation }} Y\)CUET 2025 Hard - The intensity ratio of two interfering sources in Young's double slit experiment is \(4 : 1\). The ratio of \( \frac{I_{min}}{I_{max}} \) is:CUET 2023 Medium
- Let \(A=\left[a_{i j}\right]\) be a square matrix of order 3 with each entry either 0 or 1 .
Then the number of all such possible matrices is :CUET 2025 Easy - Dispersed phase and dispersion medium in clouds are ___________ respectively.CUET 2023 Easy