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Chapter 22: Problem 8

An electric dipole antenna used to transmit radio waves is oriented horizontally north-south.At a point due east of the transmitter, what is the direction of the wave's electric field?

Short Answer

Expert verified
Answer: The direction of the wave's electric field at a point due east of the transmitter is upward or downward (perpendicular to the north-south direction).

Step by step solution

01

Understand the problem and given information.

The problem involves an electric dipole antenna which has a north-south orientation (meaning the antenna lies horizontally on a north-south line). The antenna's job is to transmit radio waves, and we need to find the direction of the electric field at a point due east of this transmitter.
02

Recall the relation between the antenna and electric field.

In an electric dipole antenna, the electric field's direction is perpendicular to the direction of the dipole (which, in this case, is the north-south orientation).
03

Determine the direction of the electric field at the point east of the transmitter.

As the electric field is perpendicular to the direction of the dipole, at any point on the east side of the dipole, the electric field will be in an upward or downward direction (perpendicular to the north-south direction).
04

Write the final answer.

The direction of the wave's electric field at a point due east of the transmitter is upward or downward (perpendicular to the north-south direction).

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