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How Much Energy Is Stored in a Room 3

Question 21

Multiple Choice

How much energy is stored in a room 3.0 m by 4.0 m by 2.4 m due to the earth's magnetic field with a strength of 5.0 × 10-5 T? (μ0 = 4π × 10-7 T • m/A)


A) 570 mJ
B) 29 mJ
C) 10 mJ
D) 100 mJ
E) 57 mJ

Correct Answer:

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