Consider the following two statements about the internal conditions in an n-channel MOSFET operating in the active region.
$\qquad \qquad \text{S1:}$ The inversion charge decreases from source to drain
$\qquad \qquad \text{S2:}$ The channel potential increases from source to drain
Which of the following is correct?
- Only $\mathrm{S} 2$ is true
- Both $\mathrm{S} 1$ and $\mathrm{S} 2$ are false.
- Both $\mathrm{S} 1$ and $\mathrm{S} 2$ are true, but $\mathrm{S} 2$ is not a reason for $\mathrm{S} 1$
- Both $\mathrm{S} 1$ and $\mathrm{S} 2$ are true, and $\mathrm{S} 2$ is a reason for $\mathrm{S} 1$