Question:

The range of magnetic susceptibility and relative magnetic permeability for diamagnetic substances are

Updated On: Jun 23, 2023
  • $-1 \ge \chi > 0$, $0 \le \mu_{r} < 1$
  • $-1 \le \chi > 0$, $0 \ge \mu_{r} < 1$
  • $-1 \ge \chi > 1$, $0 \le \mu_{r} < 1$
  • $-1 \le \chi > 0, 0 \le \mu_{r} < 1$
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The Correct Option is D

Solution and Explanation

Theory states that susceptibility of diamagnetic substances as, $-1 \leq X \leq 0$ Relation between $X$ and $\mu_{ r }$ $\Rightarrow X _{ m }=\mu_{ r }-1 $ $\Rightarrow \mu_{ r }=1+ X _{ m } $ $\Rightarrow-1 \leq X \leq 0,$ add one. $\Rightarrow 0 \leq 1+ X \leq 1,\,\, 0 \leq \mu_{ r } \leq 1$
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Concepts Used:

Magnetism & Matter

Magnets are used in many devices like electric bells, telephones, radio, loudspeakers, motors, fans, screwdrivers, lifting heavy iron loads, super-fast trains, especially in foreign countries, refrigerators, etc.

Magnetite is the world’s first magnet. This is also called a natural magnet.  Though magnets occur naturally, we can also impart magnetic properties to a substance. It would be an artificial magnet in that case.

Read More: Magnetism and Matter

Some of the properties of the magnetic field lines are:

  • The lines and continuous and outside the magnet, the field lines originate from the North pole and terminate at the South pole
  • They form closed loops traversing inside the magnet. 
  • But here the lines seem to originate from the South pole and terminate at the North pole to form closed loops.
  • More number of close lines indicate a stronger magnetic field
  • The lines do not intersect each other
  • The tangent drawn at the field line gives the direction of the field at that point.