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A typical laboratory electric field is 1600 V/m.

Find the average intensity of an electromagnetic wave with this value for its peak field Express your answer to two significant figures and include the appropriate units.
S = _____

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Final answer:

The average intensity of an electromagnetic wave with a peak electric field of 1600 V/m is approximately 2.26 x 10^3 W/m^2.

Step-by-step explanation:

To find the average intensity (S) of an electromagnetic wave with a peak electric field (E) of 1600 V/m, we can use the formula for intensity, S = (1/2) ε0 c E2, where ε0 is the permittivity of free space and c is the speed of light.

Given that the permittivity of free space ε0 is approximately 8.85 x 10-12 C2/N·m2 and the speed of light c is approximately 3.00 x 108 m/s, we can calculate the average intensity of the wave using the provided electric field.

Plugging in the values, the calculation is as follows:

S = (1/2) ε0 c E2 = (1/2)(8.85 x 10-12)(3.00 x 108)(1600)2

Performing the calculation provides an average intensity:

S ≈ 2.26 x 103 W/m2

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