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babunello [35]
3 years ago
14

A magnet in the form of a cylindrical rod has a length of 7.30 cm and a diameter of 1.5 cm. It has a uniform magnetization of 5.

30 x 103 A/m. What is its magnetic dipole moment in units of JIT?
Physics
2 answers:
yulyashka [42]3 years ago
6 0

Answer:

Magnetic dipole moment is 0.0683 J/T.

Explanation:

It is given that,

Length of the rod, l = 7.3 cm = 0.073 m

Diameter of the cylinder, d = 1.5 cm = 0.015 m

Magnetization, M=5.3\times 10^3\ A/m

The dipole moment per unit volume is called the magnetization of a magnet. Mathematically, it is given by :

M=\dfrac{\mu}{V}

\mu=M\times \pi r^2\times l

Where

r is the radius of rod, r = 0.0075 m

\mu=5.3\times 10^3\ A/m\times \pi (0.0075)^2\times 0.073\ m

\mu=0.0683\ J/T

So, its magnetic dipole moment is 0.0683 J/T. Hence, this is the required solution.

8_murik_8 [283]3 years ago
3 0

Answer:

0.068317J/T

Explanation:

Magnetization is defined as the magnetic moment per unit volume means

Magnetization=\frac{Magnetic\ moment}{Volume}

So magnetic moment = magnetization × volume

We have given magnetization = 5.3\times 10^3A/m

Diameter=1.5 cm ,so radius =\frac{1.5}{2}=0.75cm\ =0.0075m

Area A =\pi r^2=3.14\times 0.0075^2=1.766\times 10^{-4}m^2

Length = 7.3 cm =0.073 m

So volume =1.766\times10^{-4}\times 0.073=1.289\times 10^{-5}m^3

Now magnetic moment = magnetization × volume =5.30\times 10^3\times 1.289\times 10^{-5}=0.068317J/T

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