Answer:
Electromagnetic waves are combinations of electromagnetic fields.
Now, an example of electromagnetic waves is the range of visible light, so for example, when your tv emits light or images, these are actually electromagnetic waves.
The same example is for infrared waves (the used in old remote controls to change of channel or things like that)
Also, all the lightbulbs emit electromagnetic waves in the form of light.
Another example can be the microwave oven, which uses microwaves to heat food (microwaves are waves with a frequency a little bit smaller than the infrared light)