Electromagnetic Waves as Sinusoidal Waves Video Lessons

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Problem: Which of the following statements are true?a) Electric and magnetic fields can be treated independently only if they vary in time.b) A time-varying magnetic field will produce an electric field.c) A time-varying electric field will produce a magnetic field.d) Time-varying electric and magnetic fields can propagate through space only if there is no matter in their path.

FREE Expert Solution

Electric and magnetic fields are always interrelated to each other. 

That is, a time-varying electric field is produced by a time-varying magnetic field. 

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Problem Details

Which of the following statements are true?

a) Electric and magnetic fields can be treated independently only if they vary in time.

b) A time-varying magnetic field will produce an electric field.

c) A time-varying electric field will produce a magnetic field.

d) Time-varying electric and magnetic fields can propagate through space only if there is no matter in their path.

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