If it is necessary to break it down as simply as possible, then the electric motor differs from the usual one only in that the former works with the help of an electric motor. This will ensure that the drive mechanism is implemented to the right level and in the right way.
There are certain laws that govern how fast an electric motor runs and the average is around 20 mph. With this in mind, most of these bicycle manufacturers ensure that they meet this standard at every step, but if they get special permission from the relevant agency, they can go beyond that limit.
You can buy a finished e-bike online or assemble it yourself with the help of a conversion kit. In terms of pricing, the first option will cost you a minimum of $500 and up to $3,500, while the latter will take a maximum of $800 from your bank account.
Now if you're wondering how an electric bike works, the answer is very simple – with the help of batteries. This is when a bit of a limitation occurs – most electric bikes need to be charged after about 20 miles. This number can increase or decrease depending on a number of factors, namely the nature of the route or terrain, the rider's construction, and the weight and size of each wheel.
In short, although you don't need a license to use a bicycle, you should read your country's laws and regulations before buying your own bicycle.