1 Crore+ students have signed up on EduRev. Have you? Download the App 
Rohit and Ronit start together from a point in opposite direction on bike. Rohit’s speed is 21Km/h and Ronit’s speed is 15km/h. What will be the distance between them after 20 mintues?
There are 60 students in a class. The students are divided into three groups A, B and C of 15, 20 and 25 students, respectively. The groups A and C are combined to form group D. What is the average weight of the students in group D?
Each of the letters in the figure below represents a unique integer from 1 to 9. The letters are positioned in the figure such that each of (A+B+C),(C+D+E),(E+F+G) and (G+H+K) is equal to 13 each. Which integer does E represent?
The probability that a man will live 10 more years is 1/4 and the probability that his wife will live 10 more years is 1/3. The probability that neither of them will be alive in 10 years is
Following bar chart provides the percentage of Adult Males, Adult Females and Children out of total population in five colonies A, B, C, D and E
If total number of residents in colonies A, B and C are 1250, 2050 and 1800 respectively, then what is the total number of adult females in colonies A, B and C together?
Voting is the privilege for which wars have been fought, protests have been organized, and editorials have been written. "No taxation without representation," was a battle cry of the American Revolution. Women struggled for suffrage, as did many minorities. Eighteen year olds clamored for the right to vote, saying that if they were old enough to fight in the war, then they should be allowed to vote. Yet Americans have a deplorable voting history, and many will tell you that they have never voted.
Which of the following words is the best synonym for the word 'privilege' as used in the passage?
In the basement of an apartment, the total number of wheels of all cars and bikes is 70 more than twice the number of parked vehicles. The number of cars parked in the basement is:
Two trains start at the same time from two stations and proceed towards each other at speeds of 90 km/h and 70 km/h, respectively. When they meet, it is found that one train has travelled 140 km more than the other. What is the distance (in km) between the two stations?
Direction: In the given question, an idiom/phrase has been printed in bold in the sentence. Choose the alternative that best expresses the meaning of the idiom/phrase
The family of the victim said that the killer had got his just deserts when he was jailed for life.
A tree of the graph shown below is
If Eigen values of A_{2}×2Matrix are 2, 3 then Eigen values of A2 – 3A + 4I will be 'g' and 'h'. What will be the sum of 'g' and 'h'.
Directions: Select the most appropriate word/phrase among the choices to complete the sentence.
You can make your quixotic experiments with someone else, I do not wish to be your ________.
One hundred identical coins, each with probability P of showing up heads are tossed once. If 0 < P < 1 and the probability of heads showing on 50 coins is equal to that of heads showing on 51 coins. Then the values of P is
If prices reduce by 20% and sales increase by 15%, what is the net effect on gross receipts?
A specimen of a Si has a resistivity of 200kΩ cm, magnetic flux B = 0.3Wb / m^{2} and d = w = 6mm. if the value of hall voltages and hall currents are 60mV and 10μA. Then the value of μp is (cm^{2} / V  sec )
Kirchhoff's current law is applicable to:
Which of the above is/are correct?
In the circuit given below, what is the operating region of the transistor, if it has a β of 100?
Directions: Read the given context and answer the question that follows.
Most Reality TV shows centre on two common motivators: fame and money. The shows transform waitresses, hairdressers, investment bankers, counsellors and teachers, to name a few, from obscure figures to household names. A lucky few successfully parlay their fifteen minutes of fame into celebrity. The luckiest stars of Reality TV also reap huge financial rewards for acts, including eating large insects, marrying someone they barely know, and revealing their innermost thoughts to millions of people.
Which of the following options best supports the above paragraph?
Consider a circuit as shown in fig below
Equivalent resistance across the terminals A & B is_____Ω.
Directions: Insert the missing number.
The ROC of ztransform of the discrete time sequence is
Consider a discrete time periodic signal x [n] = sin(πn/5) . Let ak be the complex Fourier series coefficients of x[n]. The coefficients {a_{k}}, are nonzero when k = Bm±1, where m is any integer. The value of B is _______.(Answer up to the nearest integer)
When the load on a transmission line is equal to the surge impedance loading, then
A discrete random variable X has possible values xi = i^{2}, i = 1, 2, 3, 4 which occur with probabilities 0.4, 0.25, 0.15, 0.1. The mean value = E [X] of X is ___. (Answer up to two decimal places)
In a transistor amplifier, change of 0.025V in signal voltage causes the base current to change by 15 µA and collector current by 1.2 mA. If collector and load resistances are of 6kΩ and 12kΩ, determine input resistance in kΩ.
A source has an alphabet {a_{1}, a_{2}, a_{3}, a_{4}, a_{5}, a_{6}} with corresponding probabilities {0.1, 0.2, 0.3, 0.5, 0.15, 0.2}. The entropy (in bits / symbol) of this source is ______. (Answer up to one decimal place)
In the figure shown below, voltage V1 and V2 are
The Fourier transform of signal is
A white noise signal having two sided spectral density of 5*10^{6} V^{2}/Hz is applied to a simple RC low pass filter whose 3 dB cutoff frequency is 5 kHz. The mean squared value of noise obtained at the output of filter would be
Consider the given circuit and waveform for the input voltage. The diode in circuit has cutting voltage Vy = 0.
The waveform of output voltage vo is
An electric field strength is to be measured at an observation point
θ = π/2, 500 km from a halfwave (resonant) dipole antenna operating in air at 50 MHz . The measurement of dipole would be ____(in m)
Input impedance of an instrumentation amplifier compared with a difference amplifier is
Let x(t) be a signal band width to 1 kHz. Amplitude modulation is performed to produce signal g(t) = x(t) sin 2000ϖt. A proposed demodulation technique to illustrated in figure. The ideal low pass filter has cutoff frequency 1 kHz and pass band gain 2. The y(t) would be
In the following circuit, the respective values of iN and RN are
An 16bit microprocessor has an external RAM which is having accessible range from A800 – AFFF H. The no. of address lines in the RAM is
In a simple RC high pass filter, the desired rolloff frequency is 15 Hz and C = 10 μF. The value of R (in kΩ) would be ____. (Answer up to two decimal places)
The system shown in the given figure, is subjected to a unit ramp input
By closing the switch ‘S’
The openloop transfer function with ufb are given below for different systems. The unstable system is
For the closed loop control system shown
The values of α& β, such that the system has settling time of 0.2 sec. and steady state error for unit ramp input is 6% are (approx.)
If r = xu_{x} + yu_{y} + zu_{z}, then (r. ∇) r^{2} is equal to
If the effective mass of an electron is equal to thrice the effective mass of a hole , then the distance of fermi level in an intrinsic semiconductor from the centre of the forbidden band at room temperature is ____ eV.
(Give your answer upto 3 decimal places)
If C is a closed curve enclosing a surface S, the magnetic field intensity the current density and the electric flux density are related as:
In the circuit shown, the switch S is closed at t = 0 after long time. I_{f} (0+) is____ (in Amp).
If E_{b}, the energy per bit of a binary digital signal, is 10^{5} wattsec and the one sided power spectral density of the white noise, N_{0} = 10^{6} W/Hz, then the absolute output SNR (in dB) of the matched filter is (Answer up to the nearest integer)
Consider the following network
The value of Z_{L} (in Ω) for maximum power transfer to it is
For the diode circuit shown in figure,
The maximum amplitude of cross correlated sequence of x(n)=(2,5,0,4) and h(n)=(3,1,4) is
For the following circuit, what will be the current (mA) flowing through collector of the transistor? (Answer up to one decimal place)
In the below circuit, the input offset voltage and input offset current are V_{io}=4mV and I_{io}=150nA The total output voltage is _______mV
Directions: For the regulator circuit shown below, various parameters are
V_{z} = 6.3 V
I_{z}T = 40 mA
R_{z} = 2 Ω
V_{s} = 12 V to 18 V
Minimum load current = 0 mA
Minimum zener diode current = 1 mA
Maximum zener diode current = 119 mA
The value of RS that limits the zener current Iz(max) (in Ω) will be (Answer up to one decimal place)
A full wave rectifier uses a capacitance of 60 μF in parallel with a load of 1 kΩ to regulate the voltage obtained through a centre tapped transformer. If the centre tapped transformer has 40 V (RMS) as voltage in secondary coil during operation at frequency of 50 Hz, what will be the regulation provided(in %)?
A unity feedback system is given as:
G (s) =
Indicate the correct root locus diagram.
AWGN channel having B.W of 4 kHz, 2sided noise PSD is given by 10^{−}^{12}Watts / Hz The Channel capacity( in kbps) required to get the signal power of 0.1 MW at channel o/p is __
The general solution of  2y = 10 cos x is
In a spectrum analyser a signal with 100% amplitude modulation is observed, what type of display should be observed?
A speaks truth in 75% and B in 80% of the cases. In what percentage of cases are they likely to contradict each other narrating the same incident?
The input signal Vin shown in the figure is a 1 KHz square wave voltage that alternates between +7V and 7V with a 50% duty cycle. Both transistors have the same current gain, which is large. The circuit delivers power to the load resistor R_{L}. What is the efficiency of this circuit for the given input? Choose the closest answer.
All transistors in the N output mirror shown below are matched with a finite gain â and early voltage VA = . The expression for each load current is
Consider an excess3 to BCD code converter as shown below which accepts excess3 code as input and outputs corresponding BCD code
The simplified Boolean expression for the output bit Y is
In the following circuit, transistors Q_{1} and Q_{2} has following parameters:
The voltages V1, V2 and V3 respectively are
The contents of some memory location of an 8085 microprocessor based system are as shown below
The program is as follows
LHLD 3000H
MOV E, M
INX H
MOV D, M
LDAX D
MOV L, A
INX D
LDAX D
MOV H, A
The contents of HL pair after the execution of the program will be
Two random variable X and Y have the density function
The X and Y are
Parameters of transistors are given,
V_{TN} = 0.8V, K_{n}′ = 40μA / V^{2}. The width tolength ratio of M_{2} is
(w/L)_{2}= 1. if V_{0 }= 0.10V when V_{i}=5V, then
(W/L)_{1} for M_{1} is
24 docs263 tests

24 docs263 tests
