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

What is the susceptibility of a medium if its relative permeability is $0.85 ?$
  1. 1.85
  2. 0.15
  3. -0.15
  4. -0.85

Solution

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

Asked in: MHT CET 2021 (21 Sep Shift 1)

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