In the following circuit the output $$'V'$$ follows an equation of the form $${{{d^2}V} \over {d{t^2}}} + a.{{dV} \over

$$(a)$$ For the circuit shown in figure $$(i)$$ Calculate the transfer function $${{{V_0}} \over {{V_i}}}$$ $$(ii)$$

In a common Emitter amplifier, the un bypassed emitter resistance provides

The voltage series feedback in a feedback amplifier leads to

The Circuit shown in figure is excited by the input wave form shown. Sketch the wave form of the output. Assume all the

In an $$RC$$- coupled common Emitter amplifier which of the following is true?

For the $$JFET$$ amplifier shown in figure $$\mu = 100,\,{r_d} = 50k\Omega $$ $$(i)$$ Draw the $$AC$$ equivalent circu

In the following circuit the $$5$$ $$V$$ zener diode requires a minimum current of $$10$$ $$mA.$$ For obtaining a regula

In the circuit shown in figure calculate and sketch the wave form of current $$'i'$$ over one period of the i/p voltages

An ideal op-amp is used to make an inverting amplifier. The two input terminals of the op-amp are at the same potential

The overall transfer function of the system in Figure, is

For what values of $$'a'$$ does the system shown in figure have a zero steady state error $$\left[ {i.e.,\mathop {Lim}\l

For what range of $$K$$ is the following system (Figure) asymptotically stable Assume $$K \ge 0$$

Which of the following figure(s) represent valid root loci in the $$s$$ - plane for positive $$K?$$ Assume that the syst

A unity feedback system has the open loop transfer function $$G\left( s \right) = {1 \over {\left( {s - 1} \right)\left(

If the $$HLT$$ instruction of a $$8085$$ microprocessor is executed,

The time constant of the network shown in Fig. is

The equivalent inductance seen at terminals $$A-B$$ in Fig. is .................... $$H.$$

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 \

Using Thevenin equivalent circuit, determine the $$rms$$ value of the voltage across the $$100$$ $$ohm$$ resistor after

Resistances in the circuit of fig. are of R $$\Omega$$ each. The switch is initially open. What happens to the lamp's in

All the resistances in the circuit of Fig. are of 1 $$\Omega$$ each. The value of current 'I' is

A resistance is measured by the voltmeter- ammeter method employing d.c. excitation and a voltmeter of very high resista

An unshielded moving iron voltmeter is used to measure the voltage in an a.c. circuit. If a stray d.c. magnetic field ha

In $$d.c.$$ potentiometer measurements, a second reading is often taken after reversing the polarities of the $$s.c.$$ s

In a dual slope integrating type digital voltmeter the first integration is carried out for $$10$$ periods of the supply

The torque angle of a synchronous machine operating from a constant voltage bus, is usually defined as the space angle b

The developed electromagnetic force and or torque in electro $$-$mechanical energy conversion systems act in a directi

Figure depicts the load characteristics of an constant speed. Match the following sets of operating conditions with the

Neglecting all losses, the developed torque $$(T)$$ of $$d.c.$$ separately excited motor, operating under constant termi

A separately excited $$d.c.$$ motor has an armature resistance of $$0.5$$ $$ohm.$$ It runs off a $$250$$ $$V$$ $$d.c.$$

Two transformers of the same type, using the same grade of iron and conductor materials, are designed to work at the sam

Two transformers of different $$kVA$$ ratings workings in parallel share the load in proportion to their ratings when th

Which of the following equations represents the Gauss's law in a homogeneous isotropic medium?

An electrostatic potential is given by $$\phi=2x\sqrt y$$ volt in the rectangular co-ordinate system. The magnitude of t

In the circuit shown in fig, $$L$$ is large and the average value of $$'i'$$ is $$100A.$$ The thyristor is gated in the

The selection of size of conductors for a distributor in a distribution system is governed by

The inductance of a power transmission line increases with

A Buchholz relay is used for

In load flow studies of a power system, the quantities specified at a voltage-controlled bus are ____________and________

The impulse response of a network is $$h\left( t \right) = 1$$ for $$0 \le t < 1$$ and zero otherwise. Sketch the im

Match the following transfer functions and impulse responses Transfer functions $$\eqalign{ & \left( a \right)\,\,