When the voltage across the drain and the source (VDS) is increased from a small amount assuming that the NMOS transistor is working in linear region, then the depth of the channel in NMOS transistor Will become non uniform and will take a tapered shape with deepest depth at the drain Will become non uniform and will take a tapered shape with deepest depth at the source Will remain uniform but the width of the channel will increase Will remain uniform but the width of the channel will decrease