A magnetising field of 1500A m-1 produces flux of 2-4- 10-5 weber in a iron bar of the cross-sectional area of 0-5 cm2- The permeability of the iron bar is-

A magnetising field of $1600 A m^{- 1}$ produces a magnetic flux of $2.4 \times 10^{- 5} W b$ in an iron bar of cross sectional area $0.2 c m^{2}$ . Calculate permeability and susceptibility of the bar.

Q. A magnetising field of

5000 A/m

produces a magnetic flux of

5 \times 10^{- 5} wb

in an iron rod is

0.5 {cm}^{2}

, then the permeability of the rod will be (in

H/m

)

Q. The magnetizing field of

1600 A m^{- 1}

produced a magnetic flux of

2.4 \times 10^{- 5} W b

in a bar iron of cross section

0.2 {c m}^{2}

. Determine the relative permeability, intensity of magnetization and susceptibility of the bar magnet.

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A magnetising field of 1500A m−1 produces flux of 2.4×10−5 weber in a iron bar of the cross-sectional area of 0.5 cm2. The permeability of the iron bar is?

The correct option is D 255Here, H=1500A m−1,ϕ=2.4×10−5 weberA=0.5cm2=0.5×10−4m2∴B=ϕA=2.4×10−50.5×10−4=4.8×10−1Tand μ=BH=4.8×10−11500=3.2×10−4So relative permeabilityμr=μμo=3.2×10−44π×10−7=0.255×103=255.

A magnetising field of $1500$ A $m^{- 1}$ produces flux of $2.4 \times 10^{- 5}$ weber in a iron bar of the cross-sectional area of $0.5$ $c m^{2}$ . The permeability of the iron bar is?