GATE EC 2011 Question Paper (13-Feb-2011) (Shift 2)

In the circuit shown below, for the MOS transistors μₙC${}_{OX}$ = 100 μA/V² and the threshold voltage V${}_T$ = 1V. The voltage Vₓ at the source of the upper transistor is

An input x(t) = exp(-2t) u(t) + δ(t - 6) is applied to an LTI system with impulse response h(t) = u(t). The output is

For a BJT, the common-base current gain $\alpha =0.98$ and the collector base junction reverse bias saturation current I${}_{CO}$ = 0 .6 μA. This BJT is connected in the common emitter mode and operated in the active region with a base drive current I${}_B$ = 20 μA . The collector current I${}_C$ for this mode of operation is:

If $F(s)=L[f(t)]=\frac{(2s+1)}{s^2+4s+7}$ then the initial and final values of f(t) are respectively.

In the circuit shown below, current I is equal to