Question:

Relative permeability of iron is 5500. Its magnetic susceptibility is

Updated On: Feb 23, 2024
  • $5499$
  • $5500\times10^7$
  • $5500\times10^{-7}$
  • $5501$
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The Correct Option is A

Solution and Explanation

$\mu_r$ = 5500, using 1 + $\chi = \mu_2$ , we get $\chi$ = 5500 - 1 = 5499.
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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.

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