MCQ
The relative permeability of a material is 0.9. The material is:
  • A
    Diamagnetic.
  • B
    Para magnetic.
  • C
    Ferro magnetic.
  • D
    Non-magnetic.

Answer

  1. Diamagnetic.

Explanation:

Diamagnetic material

$−1≤\text{x}<0$

$0 ≤ μ < 1$

χ = Magnetic susceptibility

$μ $ = permeability

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Balmer series lies in which spectrum?
In the AC network shown in figure, the rms current flowing through the inductor and capacitor are 0.6A and 0.8A respectively. Then the current coming out of the source is
Image

Faraday’s 2nd law states that mass deposited on the electrode is directly proportional to

(a) Atomic mass

(b) Atomic mass × Velocity

(c) Atomic mass/Valency

(d) Valency

The electrostatic potential due to an electric dipole is directly proportional to:
In which of the following, emission of electrons does not take place?
A particle of mass m is attached to a light string of length l, the other end of which is fixed. Initially the string is kept horizontal and the particle is given an upward velocity v. The particle is just able to complete a circle.
  1. The string becomes slack when the particle reaches its highest point.
  2. The velocity of the particle become zero at the highest point.
  3. The kinetic energy of the ball in initial position was $\frac{1}{2}\text{m}\nu^2=\text{mgl}.$
  4. The particle again passes through the initial position.

Out of gravitational, electromagnetic, Vander Waals, electrostatic and nuclear forces; which two are able to provide an attractive force between two neutrons

(a) Electrostatic and gravitational

(b) Electrostatic and nuclear

(c) Gravitational and nuclear

(d) Some other forces like Vander Waals

An electron moving with velocity 'v' enters a magnetic field as shown in the above figure. Identify in which direction, the electron will experience a force?

In the given figure each plate of capacitance C has partial value of charge

(a) CE

(b)  

(c)   

(d)

Assertion :   The properties of paramagnetic and ferromagnetic substance are not effected by heating.

Reason     : As temperature rises, the alignment of molecular magnets gradually decreases.

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(c) If assertion is true but reason is false.

(d) If assertion is false but reason is true.