The transistor is OFF. The Gate voltage is too low, so no electrical "bridge" is formed. Current cannot flow from Source to Drain.
Analogy: Like a completely closed water faucet.
Device Type
nMOS
pMOS
Operation Modes
Beginner's Guide: How does it work?
What is a Transistor?
A transistor is a tiny "electric faucet". It is the brain of every computer and phone. Instead of water, it controls the flow of electricity. Its goal is simple: Connect or Disconnect the current on command.
The Parts (Legend)
Gate: The faucet handle. Apply voltage here to open the flow.
Source & Drain: The pipe entry and exit for electricity.
Substrate (Body): The silicon foundation everything sits on.
Channel: The yellow "bridge" that forms when ON. Current flows through here.
nMOS vs. pMOS
There are two types of "faucets":
nMOS (Standard): Opens with Positive voltage ("1"). Uses Electrons (Negative charge).
pMOS (Opposite): Opens with Negative/Low voltage ("0"). Uses "Holes" (Positive charge).