GATE ECE 1991 | GATE ECE Year Wise Previous Years Questions

GATE ECE 1991

MCQ (Single Correct Answer)

-0.6

Two two-port networks are connected in cascade. The combination is to be represented as a single two-port network. The parameters of the network are obtained by multiplying the individual

z-parameter matrix

h-parameter matrix

y-parameter matrix

ABCD parameter matrix

GATE ECE 1991

Subjective

-0

Find the Laplace transform of the waveform x(t) shown in Fig.1. GATE ECE 1991 Signals and Systems - Continuous Time Signal Laplace Transform Question 2 English

GATE ECE 1991

MCQ (Single Correct Answer)

-0.6

The voltage across an impedance in a network is V(s) = Z(s) I(s), where V(s), Z(s) and $${\rm I}$$(s) are the Laplace Transforms of the corresponding time functions V(t), z(t) and i(t).

The voltage v(t) is

$$v\left( t \right) = z\left( t \right)\,.\,i\left( t \right)$$

$$v\left( t \right) = \int\limits_0^t {i\left( \tau \right)\,z\left( {t - \tau } \right)d\tau } $$

$$v\left( t \right) = \int\limits_0^t {i\left( \tau \right)z\left( {t + \tau } \right)d\tau } $$

$$v\left( t \right) = z\left( t \right) + i\left( t \right)$$

GATE ECE 1991

MCQ (Single Correct Answer)

-0.6

An excitation is applied to a system at $$t = T$$ and its response is zero for $$ - \infty < t < T$$. Such a system is a

non-causal system

stable system

causal system

unstable system

PREVIOUS NEXT

GATE ECE Papers

2024