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(a) Find the electric and magnetic field amplitudes in an

Chapter 25, Problem 58P

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QUESTION:

Problem 58P

(a) Find the electric and magnetic field amplitudes in an electromagnetic wave that has an average energy density of 1.0 J/m3. (b) By what factor must the field amplitudes be increased if the average energy density is to be doubled to 2.0 J/m3?

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QUESTION:

Problem 58P

(a) Find the electric and magnetic field amplitudes in an electromagnetic wave that has an average energy density of 1.0 J/m3. (b) By what factor must the field amplitudes be increased if the average energy density is to be doubled to 2.0 J/m3?

ANSWER:

Step 1 of 4

(a) Electric field is given by

Given, the energy density of the electromagnetic wave,

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