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Questions by Milicevic3306

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121
GATE2015-56
Consider a low-pass filter module with a pass-band ripple of $\delta$ in the gain magnitude. If $M$ such identical modules are cascaded, ignoring the loading effects, the pass-band ripple of the cascade is $1-(1-\delta)^M$ $\delta^M$ $(1-\delta^M)$ $(1-\delta)^M$
Consider a low-pass filter module with a pass-band ripple of $\delta$ in the gain magnitude. If $M$ such identical modules are cascaded, ignoring the loading effects, the...
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122
GATE2015-57
The fundamental period of the signal $x(t)=2\cos(\frac{2\pi t}{3})+\cos(\pi t)$, in seconds, is ________________ s.
The fundamental period of the signal $x(t)=2\cos(\frac{2\pi t}{3})+\cos(\pi t)$, in seconds, is ________________ s.
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123
GATE2015-58
If the deflection of the galvanometer in the bridge circuit shown in the figure is zero, then the value of $R_X$ in ohms is _______________ $\Omega.$
If the deflection of the galvanometer in the bridge circuit shown in the figure is zero, then the value of $R_X$ in ohms is _______________ $\Omega.$
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124
GATE2015-59
In the potentiometer circuit shown in the figure, the expression for $V_X$ is ____________. $(1-2\alpha)V$ $(1-\alpha)V$ $(\alpha-1)V$ $\alpha V$
In the potentiometer circuit shown in the figure, the expression for $V_X$ is ____________.$(1-2\alpha)V$$(1-\alpha)V$$(\alpha-1)V$$\alpha V$
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125
GATE2015-60
The open loop transfer function of a system is $G(s)=\frac{s^2+6s+10}{s^2+2s+2}.$ The angles of arrival of its root loci are $\pm \frac{\pi}{4}$ $\pm \frac{\pi}{3}$ $\pm \frac{\pi}{2}$ $\pm \frac{5\pi}{6}$
The open loop transfer function of a system is $G(s)=\frac{s^2+6s+10}{s^2+2s+2}.$ The angles of arrival of its root loci are$\pm \frac{\pi}{4}$$\pm \frac{\pi}{3}$$\pm \fr...
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126
GATE2015-61
A system is represented in state-space as $\dot{X}=AX+BU,$ where $A=\begin{bmatrix} 1 & 2 \\ \alpha & 6\end{bmatrix}$ and $B=\begin{bmatrix} 1 \\ 1\end{bmatrix}$. The value of $\alpha$ for which the system is not controllable is _____________.
A system is represented in state-space as $\dot{X}=AX+BU,$ where $A=\begin{bmatrix} 1 & 2 \\ \alpha & 6\end{bmatrix}$ and $B=\begin{bmatrix} 1 \\ 1\end{bmatrix}$. The val...
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129
GATE2015-64
A beam of monochromatic light passes through two glass slabs of the same geometrical thickness at normal incidence. The refractive index of the first slab is $1.5$ and that of the second, 2.0. The ratio of the time of passage of the beam through the first to the second slab is _____________.
A beam of monochromatic light passes through two glass slabs of the same geometrical thickness at normal incidence. The refractive index of the first slab is $1.5$ and th...
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130
GATE2015-65
The resolving power of a spectrometer consisting of a collimator, a grating and a telescope can be increased by increasing the angular magnification of the telescope increasing the period of the grating decreasing the period of the grating decreasing the slit-width of the collimator
The resolving power of a spectrometer consisting of a collimator, a grating and a telescope can be increased byincreasing the angular magnification of the telescopeincrea...
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131
GATE2014-GA-1
Choose the most appropriate word from the options given below to complete the following sentence. A person suffering from Alzheimer’s disease ___________ short-term memory loss. experienced has experienced is experiencing experiences
Choose the most appropriate word from the options given below to complete the following sentence.A person suffering from Alzheimer’s disease ___________ short-term memo...
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132
GATE2014-GA-2
Choose the most appropriate word from the options given below to complete the following sentence. ____________is the key to their happiness; they are satisfied with what they have. Contentment Ambition Perseverance Hunger
Choose the most appropriate word from the options given below to complete the following sentence.____________is the key to their happiness; they are satisfied with what t...
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134
GATE2014-GA-4
In any given year, the probability of an earthquake greater than Magnitude $6$ occurring in the Garhwal Himalayas is $0.04$.The average time between successive occurrences of such earthquakes is ______years.
In any given year, the probability of an earthquake greater than Magnitude $6$ occurring in the Garhwal Himalayas is $0.04$.The average time between successive occurrence...
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135
GATE2014-GA-5
The population of a new city is $5$ million and is growing at $20\%$ annually. How many years would it take to double at its growth rate? $3-4$ years $4-5$ years $5-6$ years $6-7$ years
The population of a new city is $5$ million and is growing at $20\%$ annually. How many years would it take to double at its growth rate?$3-4$ years$4-5$ years$5-6$ years...
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139
GATE2014-GA-9
$X$ is $1$ km northeast of $Y$. $Y$ is $1$ km southeast of $Z$. $W$ is $1$ km west of $Z$. $P$ is $1$ km south of $W$. $Q$ is $1$ km east of $P$. What is the distance between $X$ and $Q$ in km? $1$ $\sqrt 2$ $\sqrt 3$ $2$
$X$ is $1$ km northeast of $Y$. $Y$ is $1$ km southeast of $Z$. $W$ is $1$ km west of $Z$. $P$ is $1$ km south of $W$. $Q$ is $1$ km east of $P$. What is the distance bet...
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141
GATE2014-1
Given $x(t)=3\sin (1000\; \pi t)\; and\;y(t)=5\cos (1000\;\pi t+\frac{\pi}{4})$ The $x-y$ plot will be a circle a multi-loop closed curve a hyperbola an ellipse
Given $x(t)=3\sin (1000\; \pi t)\; and\;y(t)=5\cos (1000\;\pi t+\frac{\pi}{4})$The $x-y$ plot will bea circlea multi-loop closed curvea hyperbolaan ellipse
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142
GATE2014-2
Given that $x$ is a random variable in the range $[0,\infty]$ with a probability density function $\frac{e \frac{-x}{2}}{K}$, the value of the constant $K$ is __________.
Given that $x$ is a random variable in the range $[0,\infty]$ with a probability density function $\frac{e \frac{-x}{2}}{K}$, the value of the constant $K$ is __________....
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143
GATE2014-3
The figure shows the plot of $y$ as a function of $x$ The function shown is the solution of the differential equation (assuming all initial conditions to be zero) is : $\frac{d^2y}{dx^2}=1$ $\frac{dy}{dx}=x$ $\frac{dy}{dx}=-x$ $\frac{dy}{dx}=|x|$
The figure shows the plot of $y$ as a function of $x$The function shown is the solution of the differential equation (assuming all initial conditions to be zero) is :$\fr...
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146
GATE2014-6
The circuit shown in figure was at steady state for $t < 0$ with the switch at position $‘A’$. The switch is thrown to position $‘B’$ at time $t=0$. The voltage V(volts) across the $10\Omega$ resistor at time $t=0^+$ is __________.
The circuit shown in figure was at steady state for $t < 0$ with the switch at position $‘A’$. The switch is thrown to position $‘B’$ at time $t=0$. The voltage ...
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147
GATE2014-7
The average real power in watts delivered to a load impedance $Z_L=(4-j2)\Omega$ by an ideal current source $i(t)=4\sin(\omega t+20^\circ)A $ is ____________.
The average real power in watts delivered to a load impedance $Z_L=(4-j2)\Omega$ by an ideal current source $i(t)=4\sin(\omega t+20^\circ)A $ is ____________.
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149
GATE2014-9
A pHelectrode obeys Nernst equation and is being operated at $25^\circ C$. The change in the open circuit voltage in millivolts across the electrode for a pH change from $6$ to $8$ is __________.
A pHelectrode obeys Nernst equation and is being operated at $25^\circ C$. The change in the open circuit voltage in millivolts across the electrode for a pH change from ...
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151
GATE2014-11
Semiconductor strain gages typically have much higher gage factors than those of metallic strain gages, primarily due to: higher temperature sensitivity higher Poisson’s ratio higher piezoresitive coefficient higher magnetostrictive coefficient
Semiconductor strain gages typically have much higher gage factors than those of metallic strain gages, primarily due to:higher temperature sensitivityhigher Poisson’s ...
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153
GATE2014-13
For the op-amp shown in the figure, the bias currents are $I_{b1}=450\;nA$ and $I_{b2}=350\;nA$. The values of the input bias current $(I_B)$ and the input offset current $(I_f)$ are: $I_B=800\;nA, \;I_f=50\;nA$ $I_B=800\;nA, \;I_f=100\;nA$ $I_B=400\;nA, \;I_f=50\;nA$ $I_B=400\;nA, \;I_f=100\;nA$
For the op-amp shown in the figure, the bias currents are $I_{b1}=450\;nA$ and $I_{b2}=350\;nA$. The values of the input bias current $(I_B)$ and the input offset current...
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154
GATE2014-14
The amplifier in the figure has gain of $-10$ and input resistance of $50\;k\Omega$. The values of $R_i$ and $R_f$ are: $R_i=500\;k\Omega, R_f=50\;k\Omega$ $R_i=50\;k\Omega, R_f=500\;k\Omega$ $R_i=5\;k\Omega, R_f=10\;k\Omega$ $R_i=50\;k\Omega, R_f=200\;k\Omega$
The amplifier in the figure has gain of $-10$ and input resistance of $50\;k\Omega$. The values of $R_i$ and $R_f$ are:$R_i=500\;k\Omega, R_f=50\;k\Omega$$R_i=50\;k\Omega...
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155
GATE2014-15
For the circuit shown in the figure assume ideal diodes with zero forward resistance and zero forward voltage drop. The current through the diode $D_2$ in $mA$ is _________.
For the circuit shown in the figure assume ideal diodes with zero forward resistance and zero forward voltage drop. The current through the diode $D_2$ in $mA$ is _______...
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156
GATE2014-16
The system function of an LTI system is given by $H(Z)=\frac{1-\frac{1}{3}Z^{-1}}{1-\frac{1}{4}Z^{-1}}$ The above system can have stable inverse if the region of convergence of $H(Z)$ is defined as $|Z|<\frac{1}{4}$ $|Z|<\frac{1}{12}$ $|Z|>\frac{1}{4}$ $|Z|<\frac{1}{3}$
The system function of an LTI system is given by$$H(Z)=\frac{1-\frac{1}{3}Z^{-1}}{1-\frac{1}{4}Z^{-1}}$$The above system can have stable inverse if the region of converge...
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157
GATE2014-17
The figure is a logic circuit with inputs $A$ and $B$ and output $Y.V_{95}=+5\;V$. The circuit is of type $NOR$ $AND$ $OR$ $NAND$
The figure is a logic circuit with inputs $A$ and $B$ and output $Y.V_{95}=+5\;V$. The circuit is of type$NOR$$AND$$OR$$NAND$
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158
GATE2014-18
The impulse response of an LTI system is given as: $h[n]=\left\{ \begin{array}{rcl} \frac{\omega_c}{\pi} & n=0\\ \frac{\sin \omega_cn}{\pi n} & n\neq 0 \end{array}\right.$ It represents an ideal non-casual, low-pass filter casual, low-pass filter non-casual, high-pass filter casual, high-pass filter
The impulse response of an LTI system is given as:$h[n]=\left\{ \begin{array}{rcl} \frac{\omega_c}{\pi} & n=0\\ \frac{\sin \omega_cn}{\pi n} & n\neq 0 \end{array}\right.$...
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159
GATE2014-19
A discrete-time signal $x[n]$ is obtained by sampling an analog signal at $10\;kHz$. The signal $x[n]$ is filtered by a system with impulse response $h[n]=0.5${$ \delta [n]+\delta [n-1]$}. The $3dB$ cutoff frequency of the filter is: $1.25\;kHz$ $2.50\;kHz$ $4.00\;kHz$ $5.00\;kHz$
A discrete-time signal $x[n]$ is obtained by sampling an analog signal at $10\;kHz$. The signal $x[n]$ is filtered by a system with impulse response $h[n]=0.5${$ \delta [...
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160
GATE2014-20
A full duplex binary $FSK$ transmission is made through a channel of bandwidth $10\;kHz$. In each direction of transmission the two carriers used for the two states are separated by $2\;kHz$. The maximum baud rate for this transmission is: $2000\;bps$ $3000\;bps$ $5000\;bps$ $10000\;bps$
A full duplex binary $FSK$ transmission is made through a channel of bandwidth $10\;kHz$. In each direction of transmission the two carriers used for the two states are s...
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