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The Magnetic Field of Earth Is Roughly the Same as That

Question 45

Multiple Choice

The magnetic field of Earth is roughly the same as that of a magnetic dipole with a dipole moment of about:

A) 10¹⁷ J/T
B) 10¹⁹ J/T
C) 10²¹ J/T
D) 10²³ J/T
E) 10²⁵ J/T

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