MHT CET202122 Sep 2021Morning ShiftPhysicsMagnetic Properties of MatterActual
The permeability of a metal is 0.1256 TmA ⁻¹ . Its relative permeability will be ( ₀ 4 =10⁻⁷ . SIunit )( =3.14)
Options
- A10^5
- B3 10^5
- C2 10^6
- D10^4
Correct answer
A. 10^5
Step-by-step solution
aligned & =0.1256 & ₀=4 10⁻⁷=4 3.14 10⁻⁷ & =12.56 10⁻⁷ TmA ⁻¹ & _ r = ₀ = 0.1256 12.56 10⁻⁷ =10^5 aligned