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ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS
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Question
What is the value of the horizontal component of Earth’s magnetic field in tesla in Example 6.7?
A. 4 × 10⁻³ T
B. 4 × 10⁻⁴ T
C. 0.4 × 10⁻⁴ T
D. 4 × 10⁻⁶ T
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