GATE ECE 2009 | GATE ECE Year Wise Previous Years Questions

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

The switch in the circuit shown was on position ‘a’ for a long time and is moved to position ‘b’ at time t = 0. The current i(t) for t > 0 is given by GATE ECE 2009 Network Theory - Transient Response Question 27 English

GATE ECE 2009 Network Theory - Transient Response Question 27 English

0.2e^-125t u(t) mA

20e^-1250t u(t) mA

0.2e^-1250t u(t) mA

20e^-1000t u(t) mA

GATE ECE 2009

MCQ (Single Correct Answer)

-0.67

In the circuit shown, what value of R_L maximizes the power delivered to R_L? GATE ECE 2009 Network Theory - Network Theorems Question 27 English

$$2.4\Omega$$

$$\frac8{3}\Omega$$

$$4\Omega$$

$$6\Omega$$

GATE ECE 2009

MCQ (Single Correct Answer)

-0.3

The ROC of Z-transform of the discrete time sequence
x(n)= $${\left( {{1 \over 3}} \right)^{n}}u(n) - {\left( {{1 \over 2}} \right)^{ n}}\,u( - n - 1)$$ is

$${1 \over 3} < \left| {z\,} \right| < {1 \over 2}$$

$$\left| {z\,} \right| > {1 \over 2}$$

$$\left| {z\,} \right| < {1 \over 2}$$

$$2 < \left| {z\,} \right| < 3$$

GATE ECE 2009

MCQ (Single Correct Answer)

-0.6

A system with transfer function H(z) has impulse response h(.) defined as h(2) = 1, h(3) = - 1 and h (k) = 0 otherwise. Consider the following statements.
S1: H(z) is a low-pass filter.
S2: H(z) is an FIR filter.

Which of the following is correct?

Only S2 is true

Both S1 and S2 are false.

Both S1 and S2 are true, and S2 is a reason for S1.

Both S1 and S2 are true, but S2 is not a reason for S1.

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