Answer:
C) DC current from your car battery
Explanation:
Electromagnetic waves are waves consisting of oscillations of electric and magnetic fields perpendicular to each other.
Depending on their wavelength, electromagnetic waves are classified into 7 different types, known as electromagnetic spectrum. These types, from shortest to longest wavelength, are
Gamma rays
X- rays
Ultraviolet
Visible light
Infrared radiation
Microwaves
Radio waves
So, we see that all the following choices
A) light from your camp fire (visible light)
B) ultraviolet causing a suntan
D) radio signals (radio waves)
E) X-rays in the doctor's office
Are forms of electromagnetic radiation, while
C) DC current from your car battery
is not a form of electromagnetic radiation, since DC current consists of a flow of electrons.
Waves are vibration that is transmitted through a medium
The correct option which is not a form of electromagnetic radiation is option C)
C) DC current from your car battery
The reason why option C is correct is presented as follows:
Electromagnetic radiation are a type of waves that is made up of flow of energy in the form in packets propagating as both electric and magnetic waves that can travel though vacuum (empty space) or through a medium, including radiation and waves such as gamma radiation, visible light and radio waves;
The given options A) light from your camp fire B) Ultraviolet causing suntan, D) Radio signals, and E) X-rays in the doctor's office are electromagnetic waves given that they can propagate through empty space as observed in astronomy
The option C) DC current from your car battery, is not an electromagnetic wave because, it requires a medium, the electric cable to be transmitted, and the current moves in only one direction, making it not an electromagnetic wave
Therefore, the option which is not an electromagnetic wave is option C) DC current from your car battery
Learn more about electromagnetic radiation here:
https://brainly.com/question/21885257
