AP EAMCET · PHYSICS · Magnetic Properties of Matter
Assertion (A) : Electromagnets are made of soft iron
Reason (R): Coercivity is small for soft iron
- A Both (A) and (R) are true and (R) is the correct explanation of (A)
- B Both (A) and (R) are true and (R) is not the correct explanation of (A)
- C (A) is true, but (R) is not true
- D (A) is not true, but \((\mathrm{R})\) is true
Answer & Solution
Correct Answer
(A) Both (A) and (R) are true and (R) is the correct explanation of (A)
Step-by-step Solution
Detailed explanation
No solution. Refer to answer key.
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
- Which among the following has dimensions of charge?AP EAMCET 2020 Easy
- Hairs of shaving brush cling together when it is removed from water due toAP EAMCET 2021 Easy
- What is the phase difference between the flux linked with a coil rotating in a magnetic field and the induced emf produced in it?AP EAMCET 2020 Easy
- If the half-life of a radioactive material is 10 years, then the percentage of the material decayed in 30 years isAP EAMCET 2025 Medium
- If a charged particle enters a uniform magnetic field normally with certain velocity, then the time period of revolution of the particleAP EAMCET 2025 Easy
- The work done by 6 moles of helium gas when its temperature increases by \(20^{\circ} \mathrm{C}\) at constant pressure is
(Universal gas constant \(=8.31 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}\) )AP EAMCET 2025 Medium
More PYQs from AP EAMCET
- If \(f\) is defined by \(f(x)=\left\{\begin{array}{cc}\frac{1-\cos a x}{x \sin x}, \)(x \neq 0)\( \frac{1}{2} \quad,(x=0)\end{array}\right.\) and \(f\) is continuous at \(x=0\), then \(a^2=\)AP EAMCET 2017 Medium
- Which of the following mineral acids can attack \(\mathrm{SiO}_2\) ?AP EAMCET 2020 Hard
- If \(\mathbf{a}, \mathbf{b}, \mathbf{c}\) are unit vectors and the maximum value of \(|\mathbf{a}-\mathbf{b}|^2+|\mathbf{b}-\mathbf{c}|^2+|\mathbf{c}-\mathbf{a}|^2\) is \(k\), then \(k\left(2 \mathbf{a}^2+3 \mathbf{b}^2-4 \mathbf{c}^2\right)=\)AP EAMCET 2018 Medium
- An electron accelerated through a potential difference \(V\), passes through a uniform transverse magnetic field and experiences a force \(F\). If the accelerating potential is increased to \(2 \mathrm{~V}\), the electron in the same magnetic field will experience a force.AP EAMCET 2019 Medium
- Suppose \(A\) and \(B\) are the points at which the line \(x+y-\lambda=0\) meets the pair of straight lines \(x^2+y^2-2 x-4 y+2=0\). If \(\angle A O B=90^{\circ}\), then a value of \(\lambda\) isAP EAMCET 2022 Medium
- Match the following:

Then the correct match isAP EAMCET 2024 Medium