Here we have another RF MOSFET question, this one inspired by Miami Ink. On the chart in the picture above, which spot best represents the typical input impedance of an RF power MOSFET operating somewhere in the middle of its useful frequency range? Disregard the brown colored spots, those are just moles.

Red (low impedance capacitive)

Green (short circuit)

Blue (low impedance inductive)

Yellow (open circuit)

Answer: Red, low impedance capacitive.