Question
The magnetic materials having negative magnetic susceptibility are:
✓
Answer
- Dia magnetic.
Magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetisation of a material in response to an applied magnetic field.
Substances such as copper, iron have negative susceptibility as these substances are diamagnetic substances.
Substances with negative susceptibility signifies that they are repelled by magnets.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Diffraction of light can be explained by the following:
Isotopes of same element exists in nature.How they differ from each other?
The radius of curvature for a convex lens is 40 cm, for each surface. Its refractive index is 1.5. The focal length will be(a) 40 cm (b) 20 cm(c) 80 cm (d) 30 cm
There are two coils A and B as shown in the figure. A current starts flowing in B as shown, when A is moved towards B and stops when A stops moving. The current in A is counter clockwise. B is kept stationary when A moves. We can infer that
A photo cell is receiving light from a source placed at a distance of 1 m. If the same source is to be placed at a distance of 2 m, then the ejected electron(a) Moves with one-fourth energy as that of the initial energy(b) Moves with one-fourth of momentum as that of the initial momentum(c) Will be half in number(d) Will be one-fourth in number
Two current carrying loops of same area but of different materials have same current flowing in them in anti-clockwise direction. if a magnetic field is applied in upward direction then potential energy of loop 1 and loop 2 will always be:
Of the diodes shown in the following diagrams, which one is reverse biased
The heavier nuclei tend to have larger $\frac{\text{N}}{\text{Z}}$ ratio because:
→- A neutron is heavier than a proton.
- A neutron is an unstable particle.
- A neutron does not exert electric repulsion.
- Coulomb forces have longer range compared to the nuclear forces.
Two parallel plates separated by a distance of 5 mm are kept at a potential difference of $50 V$ . A particle of mass $10^{-15} kg$ and charge $10^{-11} C$ enters in it with a velocity $10^7 m / s$. The acceleration of the particle will be
→The ionisation potential of $H-$atom is $13.6\ V.$ When it is excited from ground state by monochromatic radiations of $ 970.6\ A^0,$ the number of emission lines will be $($according to Bohr’s theory$)$
→