An electric guitar is a guitar that uses a pickup to convert the vibration of its strings into electrical impulses. The most common guitar pickup uses the principle of direct electromagnetic induction. The signal generated by an electric guitar is too weak to drive a loudspeaker, so it is amplified before sending it to a loudspeaker. Since the output of an electric guitar is an electric signal, the signal may easily be altered using electronic circuits to add “color” to the sound. Often the signal is modified using effects such as reverb and distortion.It is a common assumption that electric guitars are louder than acoustic guitars. When they’re not plugged in of course, they actually are much quieter. Many amplifiers have headphone outputs and smartphones and similar devices can now run amp emulation software so that you can plug your guitar into your phone and practise anywhere that you like. If you’re worried about annoying the neighbours, then don’t! Just plug in a pair of headphones and you’ll be quieter than your acoustic guitar playing friends if you want to be.