GATE EE 1992
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GATE EE

In the following circuit the $$5$$ $$V$$ zener diode requires a minimum current of $$10$$ $$mA.$$ For obtaining a regula
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In the circuit shown in figure calculate and sketch the wave form of current $$'i'$$ over one period of the i/p voltages
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An ideal op-amp is used to make an inverting amplifier. The two input terminals of the op-amp are at the same potential
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The Circuit shown in figure is excited by the input wave form shown. Sketch the wave form of the output. Assume all the
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In the following circuit the output $$'V'$$ follows an equation of the form $${{{d^2}V} \over {d{t^2}}} + a.{{dV} \over
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$$(a)$$ For the circuit shown in figure $$(i)$$ Calculate the transfer function $${{{V_0}} \over {{V_i}}}$$ $$(ii)$$
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In a common Emitter amplifier, the un bypassed emitter resistance provides
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The voltage series feedback in a feedback amplifier leads to
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In an $$RC$$- coupled common Emitter amplifier which of the following is true?
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For the $$JFET$$ amplifier shown in figure $$\mu = 100,\,{r_d} = 50k\Omega $$ $$(i)$$ Draw the $$AC$$ equivalent circu
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The overall transfer function of the system in Figure, is
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For what values of $$'a'$$ does the system shown in figure have a zero steady state error $$\left[ {i.e.,\mathop {Lim}\l
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For what range of $$K$$ is the following system (Figure) asymptotically stable Assume $$K \ge 0$$
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Which of the following figure(s) represent valid root loci in the $$s$$ - plane for positive $$K?$$ Assume that the syst
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A unity feedback system has the open loop transfer function $$G\left( s \right) = {1 \over {\left( {s - 1} \right)\left(
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If the $$HLT$$ instruction of a $$8085$$ microprocessor is executed,
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All the resistances in the circuit of Fig. are of 1 $$\Omega$$ each. The value of current 'I' is
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Resistances in the circuit of fig. are of R $$\Omega$$ each. The switch is initially open. What happens to the lamp's in
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The equivalent inductance seen at terminals $$A-B$$ in Fig. is .................... $$H.$$
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In the circuit of Fig, the switch $$'S'$$ is closed at $$t=0$$ with $${i_L}\left( 0 \right) = 0$$ and $${V_C}\left( 0 \
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The time constant of the network shown in Fig. is
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Using Thevenin equivalent circuit, determine the $$rms$$ value of the voltage across the $$100$$ $$ohm$$ resistor after
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A resistance is measured by the voltmeter- ammeter method employing d.c. excitation and a voltmeter of very high resista
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An unshielded moving iron voltmeter is used to measure the voltage in an a.c. circuit. If a stray d.c. magnetic field ha
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In $$d.c.$$ potentiometer measurements, a second reading is often taken after reversing the polarities of the $$s.c.$$ s
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In a dual slope integrating type digital voltmeter the first integration is carried out for $$10$$ periods of the supply
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The torque angle of a synchronous machine operating from a constant voltage bus, is usually defined as the space angle b
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The developed electromagnetic force and or torque in electro $$-$mechanical energy conversion systems act in a directi
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Figure depicts the load characteristics of an constant speed. Match the following sets of operating conditions with the
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Neglecting all losses, the developed torque $$(T)$$ of $$d.c.$$ separately excited motor, operating under constant termi
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A separately excited $$d.c.$$ motor has an armature resistance of $$0.5$$ $$ohm.$$ It runs off a $$250$$ $$V$$ $$d.c.$$
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Two transformers of the same type, using the same grade of iron and conductor materials, are designed to work at the sam
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Two transformers of different $$kVA$$ ratings workings in parallel share the load in proportion to their ratings when th
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Which of the following equations represents the Gauss's law in a homogeneous isotropic medium?
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An electrostatic potential is given by $$\phi=2x\sqrt y$$ volt in the rectangular co-ordinate system. The magnitude of t
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In the circuit shown in fig, $$L$$ is large and the average value of $$'i'$$ is $$100A.$$ The thyristor is gated in the
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The selection of size of conductors for a distributor in a distribution system is governed by
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The inductance of a power transmission line increases with
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A Buchholz relay is used for
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In load flow studies of a power system, the quantities specified at a voltage-controlled bus are ____________and________
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The impulse response of a network is $$h\left( t \right) = 1$$ for $$0 \le t < 1$$ and zero otherwise. Sketch the im
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Match the following transfer functions and impulse responses Transfer functions $$\eqalign{ & \left( a \right)\,\,
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