Question

which of the following is made up of vibrating electric and magnetic fields traveling together?
a. a generator
b. an electromagnetic wave
c. an electromagnet
d. an induced current

Explanation:

An electromagnetic wave is defined as a wave made up of vibrating electric and magnetic fields that travel together. A generator is a device that converts mechanical energy into electrical energy. An electromagnet is a magnet whose magnetic field is produced by an electric current. An induced current is a current that is induced in a conductor by a changing magnetic field.

Answer:

B. An electromagnetic wave