Question 2
Marks : +2 | -2
Pass Ratio : 100%
In the below graph, the regions marked as A,B,C are?
Explanation: The gate to substrate capacitance exists only in cut-off region, and gate to drain capacitance exist only in saturation region.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
In cut-off mode, the value of gate to substrate capacitance is equal to ___________
Explanation: In Cut-off mode, the conducting channel does not exist, so gate-to-source and the gate-to-drain capacitances are both equal to zero. Therefore, the gate to substrate capacitance is equal to Cox* W*L.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
In saturation mode operation, gate to drain capacitance is zero due to ___________
Explanation: Due to the pinched off channel, the capacitance between source to drain is reduced to zero.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
The capacitances in MOSFET occurs due to _____________
Explanation: The on-chip capacitances found in MOS circuits are due to interconnects, difference in Doping concentration, difference in dopant materials.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
In linear mode operation, the parasitic capacitances that exists are ___________
Explanation: In linear-mode operation, the conducting channel exists, therefore there will be a finite amount of gate to source and gate to drain capacitances. Since the conducting channel exists, gate to substrate capacitance is reduced to zero.