question 1 An electromagnetic plane wave is traveling in the +z direction. The i

Question

question 1 An electromagnetic plane wave is traveling in the +z direction. The illustration below shows this wave an some instant in time. Points A, B, and C have the same z coordinate.

Which of the folowing actions will increase the energy carried by this wave?

(A) Increase E keeping frequency constant
(B) Increase frequency keeping E constant
(C) Both of the above actions will increase the energy of the wave
(D) Neither of the above actions will increase the energy of the wave

question 2 Which direction should I orient my antenna to best receive a signal from a vertical transmission tower?

(A) Vertical
(B) Horizontal
(C) 45

An electromagnetic plane wave Is traveling In the +z direction. The Illustration below shows this wave an some Instant In time. Points A. B. and C have the same z coordinate. Which direction should I orient my antenna to best receive a signal from a vertical transmission tower? Vertical Horizontal 45® angle

Explanation / Answer

1) Increasing E by keeping frequency Constant

Reason : Energy transmitted per unit Area = E X H , it is independent of frequency, if you increase transmitted Energy will be high

2) Horizontal

Reason: In this direction maximum flux is being cut

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