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Hot questions in Analog and Digital Electronics
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21
GATE Electrical 2014 Set 3 | Question: 55
A single-phase voltage source inverter shown in figure is feeding power to a load. The triggering pulses of the devices are also shown in the figure. If the load current is sinusoidal and is zero at $0,\pi , 2\pi$ …, the node voltage $V_{AO}$ has the waveform
A single-phase voltage source inverter shown in figure is feeding power to a load. The triggering pulses of the devices are also shown in the figure.If the load current i...
makhdoom ghaya
9.4k
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makhdoom ghaya
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Feb 11, 2017
Analog and Digital Electronics
gate2014-ee-3
pulses
invertor
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1
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0
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22
GATE Electrical 2013 | Question: 49
In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q$ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All elements of the circuit are assumed to be ideal. The PEAK-TO-PEAK source current ripple in $Amps$ is $0.96$ $0.144$ $0.192$ $0.288$
In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q$ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All elemen...
piyag476
1.6k
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Analog and Digital Electronics
gate2013-ee
ripple-current
electronics
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0
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23
GATE Electrical 2015 Set 2 | Question: 33
In the given rectifier, the delay angle of the thyristor $T_{1}$ measured from the positive going zero crossing of $V_{s}$ is $30^\circ$. If the input voltage $V_{s}$ is $100 \sin(100 \pi t) V$, the average voltage across $R$ (in Volt) under steady-state is _________.
In the given rectifier, the delay angle of the thyristor $T_{1}$ measured from the positive going zero crossing of $V_{s}$ is $30^\circ$. If the input voltage $V_{s}$ is ...
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Analog and Digital Electronics
gate2015-ee-2
bridge-rectifier
diodes
thyrister
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24
GATE Electrical 2015 Set 1 | Question: 8
In the following chopper, the duty ratio of switch $S$ is $0.4$. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple free capacitor voltage, the charging current (in Ampere) of the $5 V$ battery, under steady-state, is _______.
In the following chopper, the duty ratio of switch $S$ is $0.4$. If the inductor and capacitor are sufficiently large to ensure continuous inductor current and ripple fre...
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Analog and Digital Electronics
gate2015-ee-1
chopper
steady-state
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25
GATE Electrical 2014 Set 3 | Question: 48
In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance $C_1$ in microfarad is _________.
In the bridge circuit shown, the capacitors are loss free. At balance, the value of capacitance $C_1$ in microfarad is _________.
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Analog and Digital Electronics
gate2014-ee-3
bridge-circuit
source
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26
GATE Electrical 2015 Set 2 | Question: 15
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? The $CB$ ... . Both the $CB$ and $BE$ junctions are forward biased. Both the $CB$ and $BE$ junctions are reverse biased.
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...
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Analog and Digital Electronics
gate2015-ee-2
bjt-as-switch
common-emitter
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27
GATE Electrical 2015 Set 1 | Question: 15
In the $4 \times 1$ multiplexer, the output $F$ is given by $F = A \oplus B$. Find the required input $'I_{3}, I_{2}, I_{1}, I_{0}'$. $1010$ $0110$ $1000$ $1110$
In the $4 \times 1$ multiplexer, the output $F$ is given by $F = A \oplus B$. Find the required input $'I_{3}, I_{2}, I_{1}, I_{0}'$.$1010$$0110$$1000$$1110$
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Analog and Digital Electronics
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multiplexer
boolean-algebra
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28
GATE Electrical 2013 | Question: 16
A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned $ON$ and also can be turned $OFF$ by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles an $AND$ gate an $OR$ gate an $XOR$ gate a $NAND$ gate
A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned $ON$ and also can be turned $OFF...
piyag476
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piyag476
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Analog and Digital Electronics
gate2013-ee
logic-gates
truth-table
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29
GATE Electrical 2014 Set 1 | Question: 21
A cascade of three identical modulo - $5$ counters has an overall modulus of $5$ $25$ $125$ $625$
A cascade of three identical modulo - $5$ counters has an overall modulus of$5$$25$$125$$625$
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Analog and Digital Electronics
gate2014-ee-1
analog-and-digital-electronics
sequential-circuit
counters
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30
GATE Electrical 2015 Set 1 | Question: 14
In the given circuit, the silicon transistor has $\beta = 75$ and a collector voltage $V_{C} = 9V$. Then the ratio of $R_{B}$ and $R_{C}$ is _________.
In the given circuit, the silicon transistor has $\beta = 75$ and a collector voltage $V_{C} = 9V$. Then the ratio of $R_{B}$ and $R_{C}$ is _________.
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Analog and Digital Electronics
gate2015-ee-1
silicon-transistor
active-mode
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31
GATE Electrical 2013 | Question: 48
In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q $ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All elements of the circuit are assumed to be ideal. The average source current in Amps in steady-state is $3/2$ $5/3$ $5/2$ $15/4$
In the figure shown below, the chopper feeds a resistive load from a battery source. $MOSFET\: Q $ is switched at $250 kHz$ with a $\text{duty ratio}$ of $0.4$. All eleme...
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Analog and Digital Electronics
gate2013-ee
mosfet
diode
clippers
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32
GATE Electrical 2014 Set 2 | Question: 35
A $10$ $kHz$ even-symmetric square wave is passed through a bandpass filter with centre frequency at $30$ $kHz$ and $3$ $dB$ passband of $6$ $kHz$. The filter output is a highly attenuated square wave at $10$ $kHz$. nearly zero. a nearly perfect cosine wave at $30$ $kHz$ a nearly perfect sine wave at $30$ $kHz$.
A $10$ $kHz$ even-symmetric square wave is passed through a bandpass filter with centre frequency at $30$ $kHz$ and $3$ $dB$ passband of $6$ $kHz$. The filter output isa ...
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Analog and Digital Electronics
gate2014-ee-2
band-limiting-circuit
filters
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33
GATE Electrical 2014 Set 2 | Question: 23
The sinusoidal ac source in the figure has an rms value of $\dfrac{20}{\sqrt{2}}V$ . Considering all possible values of $R_L$, the minimum value of $R_S$ in $\Omega$ to avoid burnout of the Zener diode is _________.
The sinusoidal ac source in the figure has an rms value of $\dfrac{20}{\sqrt{2}}V$ . Considering all possible values of $R_L$, the minimum value of $R_S$ in $\Omega$ to a...
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Analog and Digital Electronics
gate2014-ee-2
analog-and-digital-electronics
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34
GATE Electrical 2014 Set 3 | Question: 49
Two monoshot multivibrators, one positive edge triggered $(M_1)$ and another negative edge triggered $(M_2)$, are connected as shown in figure The monoshots $M_1$ and $M_2$ when triggered produce pulses of width $T_1$ and $T_2$ respectively, where $T_1>T_2$. The steady state output voltage $v_0$ of the circuit is
Two monoshot multivibrators, one positive edge triggered $(M_1)$ and another negative edge triggered $(M_2)$, are connected as shown in figureThe monoshots $M_1$ and $M_2...
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Analog and Digital Electronics
gate2014-ee-3
multi-vibrator
edge-triggered
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35
GATE Electrical 2014 Set 1 | Question: 49
Given that the op-amps in the figure are ideal, the output voltage $V_0$ is $(V_1-V_2)$ $2(V_1-V_2)$ $(V_1-V_2)/2$ $(V_1+V_2)$
Given that the op-amps in the figure are ideal, the output voltage $V_0$ is$(V_1-V_2)$$2(V_1-V_2)$$(V_1-V_2)/2$$(V_1+V_2)$
makhdoom ghaya
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Feb 11, 2017
Analog and Digital Electronics
gate2014-ee-1
operational-amplifier
negative-feedback
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–
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36
GATE Electrical 2014 Set 2 | Question: 50
The $SOP$ (sum of products) form of a Boolean function is $\sum (0,1,3,7,11)$, where inputs are $A,B,C,D$ ($A$ is $MSB$, and $D$ is $LSB$ ... $(\overline{B}+C)(A+\overline{B})(\overline{A}+\overline{B})(\overline{C}+D)$
The $SOP$ (sum of products) form of a Boolean function is $\sum (0,1,3,7,11)$, where inputs are $A,B,C,D$($A$ is $MSB$, and $D$ is $LSB$). The equivalent minimized expres...
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Analog and Digital Electronics
gate2014-ee-2
boolean-function
least-significant-bit
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37
GATE Electrical 2013 | Question: 39
In the circuit shown below the op-amps are ideal. Then $V_{out}$ in Volts is $4$ $6$ $8$ $10$
In the circuit shown below the op-amps are ideal. Then $V_{out}$ in Volts is$4$$6$$8$$10$
piyag476
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Analog and Digital Electronics
gate2013-ee
operational-amplifier
reverse-amplifier
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38
GATE Electrical 2015 Set 2 | Question: 14
The filters $F1$ and $F2$ having characteristics as shown in Figures $(a)$ and $(b)$ are connected as shown in Figure $(c)$. The cut-off frequencies of $F1$ and $F2$ are $f_{1}$ and $f_{2}$ respectively. If $f_{1} < f_{2}$, the resultant circuit exhibits the characteristic of a Band-pass filter Band-stop filter All pass filter High-Q filter
The filters $F1$ and $F2$ having characteristics as shown in Figures $(a)$ and $(b)$ are connected as shown in Figure $(c)$.The cut-off frequencies of $F1$ and $F2$ are $...
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Analog and Digital Electronics
gate2015-ee-2
operational-amplifier
voltage-divider
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–
0
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0
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39
GATE Electrical 2013 | Question: 14
The input impedance of the permanent magnet moving coil $(PMMC)$ voltmeter is infinite. Assuming that the diode shown in the figure below is ideal, the reading of the voltmeter in Volts is $4.46$ $3.15$ $2.23$ $0$
The input impedance of the permanent magnet moving coil $(PMMC)$ voltmeter is infinite. Assuming that the diode shown in the figure below is ideal, the reading of the vol...
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piyag476
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Analog and Digital Electronics
gate2013-ee
tube
diode
electronics
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0
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40
GATE Electrical 2014 Set 3 | Question: 52
A hysteresis type $TTL$ inverter is used to realize an oscillator in the circuit shown in the figure. If the lower and upper trigger level voltages are $0.9$ $V$ and $1.7$ $V$, the period (in $ms$), for which output is $LOW$, is __________.
A hysteresis type $TTL$ inverter is used to realize an oscillator in the circuit shown in the figure.If the lower and upper trigger level voltages are $0.9$ $V$ and $1.7$...
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Analog and Digital Electronics
gate2014-ee-3
trigger-level
oscillator
numerical-answers
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