1
GATE ECE 1992
MCQ (More than One Correct Answer)
+1
-0
In an 8085 microprocessor system with memory mapped I/O,
A
I/O devices have 16 bit addresses
B
I/O devices are accessed using IN and OUT instructions
C
there can be a maximum of 256 input devices and 256 output devices
D
arithmetic and logic operations can be directly performed with the I/O data.
2
GATE ECE 1992
Subjective
+8
-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
3
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-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
A
$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\left[1\;-\;\mathrm e^\frac1{{\mathrm R}_1{\mathrm C}_1}\right]\mathrm u\left(\mathrm t\right)$$
B
$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm\delta\left(\mathrm t\right)$$
C
$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm u\left(\mathrm t\right)$$
D
$$\frac{{\mathrm R}_2}{{\mathrm R}_1\;+\;{\mathrm R}_2}\mathrm e^\frac1{{\mathrm R}_1{\mathrm C}_1}\mathrm u\left(\mathrm t\right)$$
4
GATE ECE 1992
MCQ (Single Correct Answer)
+2
-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
A
equal to the resonance frequency
B
less than the resonance frequency
C
greater than the resonance frequency
D
not zero
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