small signal

In the circuit, I$_{DC}$ is an ideal current source. The transistors M$_{1}$ and M$_{2}$ are assumed to be biased in saturation, wherein V$_{in}$ is the input signal and V$_{DC}$ i...

Which one of the following statements is true about the small signal voltage gain of a MOSFET based single stage amplifier?

For an ideal MOSFET biased in saturation, the magnitude of the small signal current gain for a common drain amplifier is