In NMOS current flows due to electrons. But in PMOS, it is
due to holes.A logic "high" is required to switch the device
"ON" in NMOS. But in PMOS logic "low" will switch the device
NMOS are faster than PMOS because electrons(carriers in
NMOS) velocity is twice the holes(carriers in PMOS) velocity.
an oscillator is associated with an basic amplifier for
producing oscillations,for production of oscillations the
amplifier needs some input voltage but under the oscillation
condition the input voltage is zero,why?