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Mini Mock on Analog & Digital Electronics for ESE 2018

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Question 1

In a voltage divider bias circuit what will be the equivalent Vgsq.

Question 2

When a bipolar junction transistor is operating in the saturation mode, which one of the following statements is TRUE about the state of its collector-base (CB) and the base-emitter (BE) junctions?

Question 3

The common emitter forward current gain of the transistor shown is

The transistor is operating in

Question 4

A waveform generator circuit using Op-Amp is shown in the figure.
If the Zener voltage is 4.3 volt then output of the circuit is____.

Question 5

For the following oscillator circuit, the expression for the time period of oscillation can be given by (where

= RC)

Question 6

In the following circuit, the transistor is in active mode and V_c = 2V. To get V_C = 2V. To get V_C = 4V, we replace R_C with R’_C. The ratio

is _____.

Question 7

In an 8085 system, a PUSH operation requires more clock cycles than a POP operation. Which one of the following options is the correct reason for this?

Question 8

For the output F to be 1 in the logic circuit shown, the input combination should be

Question 9

In the circuit shown, the device connected to Y5 can have address in the range

Question 10

Consider the waveforms given below.

The output can be obtained from the circuit

Question 11

Consider the circuit given below.

The expression for Y is

Question 12

The clock frequency of an 8085 microprocessor is 5 MHz. If the time required to execute an instruction is 1.4 μs, then the number of T-states needed for executing the instruction is

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ESE & GATE EE General

Sep 16ESE & GATE EE