Question:medium
Which of the following pairs is that of paramagnetic materials?
Which of the following pairs is that of paramagnetic materials?
Show Hint
Paramagnetic materials are weakly attracted to a magnetic field due to the presence of unpaired electrons. Examples include Nickel and Cobalt.
Updated On: Jan 13, 2026
- Copper and Aluminium
- Sodium and Calcium
- Lead and Iron
- Nickel and Cobalt
Show Solution
The Correct Option is B
Solution and Explanation
Paramagnetic materials possess unpaired electrons and exhibit weak attraction to magnetic fields. They do not maintain magnetization when an external magnetic field is removed.
Sodium and Calcium: Both sodium and calcium are paramagnetic. Sodium and calcium atoms contain unpaired electrons, resulting in their weak attraction to magnetic fields.
Copper and Aluminium: Copper and aluminium are diamagnetic, not paramagnetic.
Lead and Iron: Lead is diamagnetic, and iron is ferromagnetic. This pair does not exemplify paramagnetic materials.
Nickel and Cobalt: Nickel and cobalt are ferromagnetic, not paramagnetic, due to their strong magnetic properties and retention of magnetization.
Sodium and Calcium: Both sodium and calcium are paramagnetic. Sodium and calcium atoms contain unpaired electrons, resulting in their weak attraction to magnetic fields.
Copper and Aluminium: Copper and aluminium are diamagnetic, not paramagnetic.
Lead and Iron: Lead is diamagnetic, and iron is ferromagnetic. This pair does not exemplify paramagnetic materials.
Nickel and Cobalt: Nickel and cobalt are ferromagnetic, not paramagnetic, due to their strong magnetic properties and retention of magnetization.
Was this answer helpful?
0
Top Questions on Magnetism and matter
- The magnetic susceptibility $\chi$ for superconductors is ______.
- GUJCET - 2026
- Physics
- Magnetism and matter
- A closely wound solenoid of 800 turns and area of cross section $2.5 \times 10^{-4}$ m$^2$ can carry a current of 3.0 A. The magnetic moment associated with it is ______.
- GUJCET - 2026
- Physics
- Magnetism and matter
- A long cylindrical conductor with large cross section carries an electric current distributed uniformly over its cross-section. Magnetic field due to this current is:
[A.] maximum at either end of the conductor
[B.] maximum at the axis of the conductor and minimum at the midpoint
[C.] minimum at the surface of the conductor
[D.] minimum at the axis of the conductor
[E.] same at all points in the cross-section of the conductor
Choose the correct answer from the options given below:- JEE Main - 2026
- Physics
- Magnetism and matter
- A plane electromagnetic wave is moving in free space with velocity \[ c=3\times10^{8}\ \text{m/s} \] and its electric field is given as \[ \vec E = 54\sin(kz-\omega t)\,\hat{j}\ \text{V/m}, \] where \(\hat{j}\) is the unit vector along the \(y\)-axis. The magnetic field \(\vec B\) of the wave is:
- JEE Main - 2026
- Physics
- Magnetism and matter
- Want to practice more? Try solving extra ecology questions todayView All Questions
