GATE ECE 1992 | GATE ECE Year Wise Previous Years Questions

GATE ECE 1992

Subjective

-0

The two-port Darlington impedance booster of figure uses identical transistors $$({h_{ie}} = 1\,k,\,\,{h_{fe}} = \,100,\,\,{h_{re}} = \,\,{h_{oe}} = \,0$$. Calculate the z-parameters of the network. (Use relavant approximations) GATE ECE 1992 Network Theory - Two Port Networks Question 8 English

GATE ECE 1992

MCQ (Single Correct Answer)

-0.6

For the compensated attenuator of figure, the impulse response under the condition $$R_1C_1\;=\;R_2C_2$$ is:

GATE ECE 1992 Network Theory - Transient Response Question 37 English

$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\left[1\;-\;\mathrm e^\frac1{{\mathrm R}_1{\mathrm C}_1}\right]\mathrm u\left(\mathrm t\right)$$

$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm\delta\left(\mathrm t\right)$$

$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm u\left(\mathrm t\right)$$

$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm e^\frac1{{\mathrm R}_1{\mathrm C}_1}\mathrm u\left(\mathrm t\right)$$

GATE ECE 1992

MCQ (Single Correct Answer)

-0.6

For the series R-L-C circuit of figure(a), the partial phasor diagram at a certain frequency is shown in figure (b).The operating frequency of the circuit is: GATE ECE 1992 Network Theory - Sinusoidal Steady State Response Question 58 English

GATE ECE 1992 Network Theory - Sinusoidal Steady State Response Question 58 English

equal to the resonance frequency

less than the resonance frequency

greater than the resonance frequency

not zero

GATE ECE 1992

MCQ (More than One Correct Answer)

-0

For a 2-port network to be reciprocal

$$z_{11}\;=\;z_{22}$$

$$y_{21}\;=\;y_{12}$$

$$h_{21}\;=\;-h_{12}$$

AB - BC = 0

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