Consider a 150-W Incandescent Lightbulb That Radiates Light in All $2.6 \times 10 ^ { - 7 } \mathrm {~T}$

Multiple Choice

Consider a 150-W incandescent lightbulb that radiates light in all directions. At a distance of 1.5 m the amplitude of the oscillating magnetic field B₀ is

A) $2.6 \times 10 ^ { - 7 } \mathrm {~T}$
B) $2.1 \times 10 ^ { - 7 } \mathrm {~T}$
C) $7.5 \times 10 ^ { - 7 } \mathrm {~T}$
D) $1.3 \times 10 ^ { - 7 } \mathrm {~T}$