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Chapter 31: Q. 17 (page 901)

A radio wave is traveling in the negativey-direction. What is the direction of E鈫�at a point whereB鈫�is in the positivex-direction?

Short Answer

Expert verified

Direction of E鈫�is in negativez^direction.

Step by step solution

01

The travelling direction of electromagnetic waves is depicted in this diagram.

Figure is,

02

Explanation

The vector of Poynting,

S鈫�=1渭oE鈫�脳B鈫�

The EM wave's path is indicated by this arrow.

B鈫�is in x^direction.

E鈫�should be included inlocalid="1648791112140">-z^direction.

So,

E脳B鈫�is in direction-y^.

localid="1648791725580" E鈫�paints inlocalid="1648791733560" -z^direction (negative localid="1648791738614" z-direction.)

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