Answer :
Final answer:
The maximum electric field at a distance of 3m from a point source of electromagnetic radiation with a 1500W power output is approximately 500 V/m. The correct answer is A. 500.
Explanation:
The maximum electric field at a distance of 3m from a point source of electromagnetic radiation with 1500W average power output can be calculated using the formula:
Electric field (E) = √((2 * power output) / (speed of light * area))
Plugging in the values, we get:
Electric field (E) = √((2 * 1500) / (3 x 10^8 x 4pi x (3)²))
Electric field (E) = √(1000 / (3 x 10⁸ x 36pi))
Electric field (E) ≈ 500 V/m
The correct answer is A. 500.
The electric field (E) is a fundamental concept in physics that describes the influence exerted by electric charges on other charges within the surrounding space.
It is a vector field, meaning it has both magnitude and direction at every point in space.
