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

An 8085 assembly language program is given below. Assume that the carry flag is initially unset. The content of the accumulator after the execution of the program is

MVI A, 07H

RLC

MOV B, A

RLC

RLC

ADD B

RRC

The first six points of the 8 point DFT of a real-valued sequence are 5, 1 – 3j, 0, 3 – 4j, 0 and 3 + 4j. The last two points of the DFT will be respectively:

For the BJT Q₁ in the circuit shown below, β = ∞, V${}_{BEon}$ = 0.7 V, VC${}_C$ Esat = 0.7 V. The switch is initially closed. At time t = 0, the switch is opened. The time t at which Q₁ leaves the active region is

In the circuit shown below, network N is described by following Y-matrix:

Y = ≤ft[ {*20c 0.1S& - 0.01S\\ 0.01S&0.1S } ].

Voltage gain $\frac{V_2}{V_1}$ is:

In the circuit shown below, the initial charge on the capacitor is 2.5 mC, with the voltage polarity as indicated. The switch is closed at time t = 0. The current i(t) at a time t after the switch is closed is