A dipole radio transmitter has its rod-shaped antenna oriented vertically. At a point due south of the transmitter, the radio waves have their magnetic field
A) oriented in any horizontal direction.
B) oriented east-west.
C) oriented vertically.
D) oriented north-south.

Question

Quizplus · Accepted Answer

The magnetic field of radio waves from a vertically oriented dipole antenna is perpendicular to the direction of propagation. At a point due south of the transmitter, the waves are propagating north-south, so their magnetic field is oriented east-west.

A Dipole Radio Transmitter Has Its Rod-Shaped Antenna Oriented Vertically