JEE MAIN - Physics (2022 - 27th June Morning Shift - No. 10)
The susceptibility of a paramagnetic material is 99. The permeability of the material in Wb/A-m, is :
[Permeability of free space $$\mu$$0 = 4$$\pi$$ $$\times$$ 10$$-$$7 Wb/A-m]
4$$\pi$$ $$\times$$ 10$$-$$7
4$$\pi$$ $$\times$$ 10$$-$$4
4$$\pi$$ $$\times$$ 10$$-$$5
4$$\pi$$ $$\times$$ 10$$-$$6
설명
$$\mu$$r = x + 1
= 99 + 1 = 100
$$\Rightarrow$$ $$\mu$$ = $$\mu$$r$$\mu$$0 = 100 $$\times$$ 4$$\mu$$ $$\times$$ 10$$-$$7 Wb/Am
= 4$$\mu$$ $$\times$$ 10$$-$$5 Wb/Am