<human>:  How does a turbocharger work?
<bot>: A turbocharger is a type of forced induction device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber. This is done by using a compressor, turbine and wastegate-controlled exhaust to drive a turbine wheel which sits inside a compressor wheel. As the exhaust from the engine passes through the turbine, it spins the turbine wheel which in turn spins the compressor wheel, forcing more air into the combustion chamber. This increases the amount of fuel that can be burned, providing additional power output and improving the engine's overall efficiency.