GATE EE 1993
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GATE EE

A Wein bridge oscillator is shown in figure. Which of the following statements are true if $$'f'$$ is the frequency of o
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Signal flow graph is used to obtain the
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Consider a second order system whose state space representation is of the form $$\mathop X\limits^ \bullet = AX + BU.$
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The transfer function for the state variable representation $$\mathop X\limits^ \bullet = AX + BU,\,\,Y = CX + DU,$$ i
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A $$10$$ bit $$A/D$$ converter is used to digitize an analog signal in the $$0$$ to $$5$$ $$V$$ range. The maximum peak
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Three devices $$A,$$ $$B$$ and $$C$$ have to be connected to a $$8085$$ microprocessor. Device $$A$$ has highest priorit
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In the following circuit (Fig.) $$i(t)$$ under steady state is
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The following circuit (Fig.) resonates at
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A metal strain gauge has gauge factor of two, it's nominal resistance is $$120$$ Ohms. It is undergoes a strain of $${1
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VRN, VYN and VBN are the instantaneous line to neutral voltages and iR, iY and iB are instantaneous line currents in a
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A $$CRO$$ screen has ten divisions on the horizontal scale. If a voltage signal $$5$$ $$sin$$$$\left( {314t + {{45}^ \ci
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A three phase slip ring induction motor is fed from the rotor side with stator winding short circuited. The frequency of
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A three phase alternator has negligible stator resistance. A short circuit test is conducted on this alternator. At a pa
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A synchronous motor operates at $$0.8$$ $$p.f.$$ lagging. If the field current of the motor is continuously increased $
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Two $$550$$ $$kVA$$ alternators operate in parallel to supply the following loads $$(i)$$ $$250$$ $$kW$$ at $$0.95$$ po
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A cumulative compounded long shunt motor is driving a load at rated torque and rated speed. If the series field is shunt
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A $$220/440$$ $$V,$$ $$50$$ $$Hz$$ single phase transformer operates on $$220$$ $$V,$$ $$40$$ $$Hz$$ supply with seconda
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The line integral of the vector potential A around the boundary of a surface S represents
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Given the differential equation $${y^1} = x - y$$ with initial condition $$y(0)=0.$$ The value of $$y(0.1)$$ calculated
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The thermal resistance between the body of a power semiconductor device and the ambient is expressed as
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A chopper operating at a fixed frequency is feeding an $$R$$-$$L$$ load. As the duty ratio of the chopper is increased f
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When a line commutated converter operates in the inverter mode
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A three phase overhead transmission line has its conductors horizontally spaced with spacing between adjacent conductors
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The transient stability of the power system can be effectively improved by
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The distribution system shown in figure is to be protected by over current system of protection. For proper fault discri
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In load flow analysis, the load connected at a bus is represented as
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$$s(t)$$ is step response and $$h(t)$$ is impulse response of a system. Its response $$y(t)$$ for any input $$u(t)$$ is
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