A: Electric bikes are designed with compact electric motors which are usually attached to the back of the front wheel and housed in a hub. There are a number of controls with a user interface which is where all the motor operation is done by the rider. Here one can control the speed, braking and other things such as battery management. Some e-bikes have other electric components such as a sensor which also help in geometry and stabilization.
Speaking of which, if you're used to non-electric cycles, be aware that e-bikes are heavy and capped at 25kph or 15.5mph. In many cases, that means the bike starts to feel like its actively fighting against you, if you try to push the speed higher than that by pedalling. That's especially true with heavier bikes, for obvious reasons, and can take a while to get used to.
Even with cheaper or heavier bikes, once you accept that you are really meant to pedal gently and let the motor do the work, non-speed freaks will get into it. E-bikes are great for commuting and for places that aren't pancake flat. They'll pull you away from the lights quickly, iron out hills and stop you getting sweaty, so you can bin the Lycra and ride in jeans, a suit, or a winter coat.
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