Which of the following is an example of RF energy?

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Multiple Choice

Which of the following is an example of RF energy?

RF energy is energy carried by radio waves—the electromagnetic waves at radio frequencies that travel through space. When a transmitter feeds an antenna, the antenna converts electrical power into these traveling waves, radiating energy into the air as RF energy. The other examples describe energy stored or static: a capacitor holds electric energy in the electric field between its plates, a battery provides chemical/electrical energy, and a magnet stores magnetic field energy. These are not inherently energy traveling as radio waves. So the example that represents RF energy is energy beaming from a transmitting antenna, since it involves radiating electromagnetic waves at radio frequencies.

RF energy is energy carried by radio waves—the electromagnetic waves at radio frequencies that travel through space. When a transmitter feeds an antenna, the antenna converts electrical power into these traveling waves, radiating energy into the air as RF energy.

The other examples describe energy stored or static: a capacitor holds electric energy in the electric field between its plates, a battery provides chemical/electrical energy, and a magnet stores magnetic field energy. These are not inherently energy traveling as radio waves.

So the example that represents RF energy is energy beaming from a transmitting antenna, since it involves radiating electromagnetic waves at radio frequencies.

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