simulate this circuit – Schematic created using CircuitLab

What is VX?

I am having confusion between 2.8 V or 3 V.

Thank you for your help.

  • 1
    \$\begingroup\$ It will be hard to address your confusion without knowing what makes you think that it's 2.8V. What is your reasoning? \$\endgroup\$ – Edgar Brown Mar 18 '19 at 18:09
  • \$\begingroup\$ pmos to turn ON, Vsg > |Vt|. substituting the values made me think so. Vs - 2 > 0.8 \$\endgroup\$ – Ravi Mar 18 '19 at 18:28
  • \$\begingroup\$ Wait, this is DC? So, if the mosfet is on and conducts, what do you think the voltage will be across the capacitor at steady state? \$\endgroup\$ – Linkyyy Mar 18 '19 at 21:17
  • \$\begingroup\$ Actually you already created the circuit in circuitlab, so why dont you click that sweet "simulate this circuit" button and see for yourself? \$\endgroup\$ – Linkyyy Mar 18 '19 at 21:22
  • 1
    \$\begingroup\$ Ok, now I understood. FET is ON and it will pass the 3V. I was interchanging the source and drain terminals which caused the problem. Thank you for explaining me \$\endgroup\$ – Ravi Mar 18 '19 at 23:04

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