Q147 / 150 · MHT CET 2021 (21 Sep Shift 1) · Physics

What is the susceptibility of a medium if its relative permeability is $0.85 ?$

  • A
    1.85
  • B
    0.15
  • Correct answer
    C
    -0.15
  • D
    -0.85

Solution

Relative permeability, $\mu_{\mathrm{r}}=1+\mathrm{x}$ $$ \therefore \mathrm{x}=\mu_{\mathrm{r}}-1=0.85-1=-0.15 $$

Hence, the correct answer is option: 'C'.

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