GATE ECE 1988 | GATE ECE Year Wise Previous Years Questions

GATE ECE 1988

MCQ (Single Correct Answer)

-0.6

If an impedance Z_L is connected across a voltage source V with source impedance Z_S, then for maximum power transfer, the load impedance must be equal to

Source impedance Z_S

Complex conjugate of Z_S

Real part of Z_S

Imaginary part of Z_S

GATE ECE 1988

MCQ (Single Correct Answer)

-0.6

The Laplace transform of a function f(t)u(t), where f(t) is periodic with period T, is A(s) times the Laplace transform of its first period. Then

A(s) = s

A(s) = 1/(1-exp(-Ts))

A(s) = 1/(1+exp(-Ts))

A(s) = exp (Ts)

GATE ECE 1988

MCQ (Single Correct Answer)

-0.6

The transfer function of a zero-order hold is

$${{1 - \exp ( - Ts)} \over s}$$

$$1/s$$

$$1/\left[ {1 - \exp \left( { - Ts} \right)} \right]$$

GATE ECE 1988

MCQ (Single Correct Answer)

-0.6

Consider the system shown in the Fig.1 below. The transfer function $$Y\left( z \right)/X\left( z \right)$$ of the system is GATE ECE 1988 Signals and Systems - Discrete Time Linear Time Invariant Systems Question 19 English

GATE ECE 1988 Signals and Systems - Discrete Time Linear Time Invariant Systems Question 19 English

$${{1 + a\,{z^{ - 1}}} \over {1 + b\,{z^{ - 1}}}}$$

$${{1 + b\,{z^{ - 1}}} \over {1 + a\,{z^{ - 1}}}}$$

$${{1 + a\,{z^{ - 1}}} \over {1 - b\,{z^{ - 1}}}}$$

$${{1 - b\,{z^{ - 1}}} \over {1 + a\,{z^{ - 1}}}}$$

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