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Nookie1986 [14]
3 years ago
5

The magnetic dipole moment of Earth is 8.00 ✕ 1022 J/T. Assume that this is produced by charges flowing in Earth's molten outer

core. If the radius of their circular path is 2350 km, calculate the current they produce.
Physics
1 answer:
Rudiy273 years ago
3 0

Answer:

Therefore,

Current produce is

i=4.61\times 10^{9}\ Ampere

Explanation:

Given:

Magnetic dipole moment of Earth,

\mu=8\times 10^{22}\ J/T

Radius = r = 2350 km = 2.35 × 10⁶ m

To Find:

Current, i =?

Solution:

Magnetic Dipole Moment:

A magnetic moment is a quantity that represents the magnetic strength and orientation of a magnet or any other object that produces a magnetic field.

Magnetic dipole moments have dimensions of current times area.

It is given by,

\mu=i\times Area

Where,

\mu =  Magnetic dipole moments

i = Current

A = area = \pr r^{2}

Substituting the values we get

i=\dfrac{\mu}{\pi r^{2}}=\dfrac{8\times 10^{22}}{3.14\times (2.35\times 10^{6})^{2}}

i=\dfrac{8\times 10^{22}}{17.34\times 10^{12}}=4.61\times 10^{9}\ Ampere

Therefore,

Current produce is

i=4.61\times 10^{9}\ Ampere

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