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The intensity of an electromagnetic wave is 8 × 10⁷ W/m2. What is the amplitude of the magnetic field of this wave?
a. 8.2 × 10 ⁻ ⁴ T
b. 5.8 × 10 ⁻ ⁴ T
c. 10 T
d. 3.3 × 10 ⁻ ⁷ T
e. 14 T


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