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## Related questions

I am a new student of electrical and electronic engineering, and facing some problems on sign related, kvl as well as mesh current analysis. By getting solution of these problems, I may get rid of these problems. For figure 4, please just write the seven mesh equations only, solution is not needed.

Please, suggest me some good websites for learning EEE..

When measuring strain, ballast circuit use a capacitor to act as a high pass filter. This is done when:  a) Static strain are being measured b) Dynamic strain are being measured c) Both Static and dynamic strain are being measured d) None of the above

An amplifier has a voltage gain of 50; this gain in dB will be (A) 34 dB (B) 68 dB (C) 41 dB (D) 14 dB

Electronic Voltmeters which use rectifiers employ negative feedback. This is done -  a) To increase the overall gain b) To improve stability c) To overcome non -linearity of the diodes d) None of the above

Which of this represent the half-time constant?  a) 0.693 T b) 0.504 T c) 0.876 T d) 0.450 T

Give four steps to solve mesh analysis.

In application of superposition theorem, one is required to solve as many circuits as there are  1. Nodes 2. Branches 3. Meshes 4. Sources

A network has 10 nodes and 17 branches. The number of independent mesh equations required to solve the network is   (a) 7 (b) 8 (c) 10 (d) 45

The number of independent equations to solve a network is equal to?

With the help of a neat circuit diagram explain the working principle of Digital to Analog converters.(DAC)

With the help of neat diagram, explain the method to obtain unidirectional polarity in train lighting.

A 4 pole lap wound dc shunt motor rotates at the speed of 1500 rpm, having a flux of 0.4 mWb and total number of conductors 1000. The value of e.m.f. will be:  (A) 100 Volts (B) 0.1 Volts (C) 1 Volts (D) 10 Volts

A DC shunt motor has rated rpm of 480. Certain industrial application requires this motor to run at 540 rpm for some time. Which speed control will be desirable? A) Ward Leonard control B) Armature current control C) Field resistance control D) It is not possible to run the motor at more than the rated rpm

A NOR gate is equivalent to a bubbled AND gate. This statement is an outcome of: (1) De Morgan’s Law (2) Involution Law (3) Law of Absorption (4) Idempotent Law

Which part of the world currently practice this form of power production. And how reliable and safe is it?

An induction type energy meter is found to run fast. Correction for this error can be made by  (A) Over-load compensation. (B) Voltage compensation. (C) Moving the brake magnet away from the centre of the disc. (D) Moving the brake magnet towards the centre of the disc.

lf the wire which is vertical to this page has electron flow downwards the conductor will have

In a 741 Op-Amp, there is 20 dB/decade fall-off starting at a relatively low frequency. This is due to the (A) applied load (B) internal compensation (C) impedance of the source (D) power dissipation in the chip

Consider the following statements regarding Peer -to -Peer computing environment :  1. In this system, clients and servers are not distinguished from one another.  2. All nodes distributed throughout the system (within) are considered Peers and each may act as either a client or a server.  3. Peer -to -Peer system assuredly ... client -server system.  4. Peer -to -Peer system is just a replica of the file -server system.  Which of the above statements are correct ?

"Electric flux enclosed by a surface surrounding a charge is equal to the amount of charge enclosed." This is the statement of

A series R-L circuit is suddenly connected to d.c. voltage source of V volts. The current in this series circuit, just after the switch is closed, is equal to (1) Zero (2) V/L (3) V/C (4) V.L/C

When electric current passes through a metallic conductor, its temperature rises. This is due to?

Two transformers are connected in parallel. These transformers do not have equal percentage impedance. This is likely to result in?

In a single phase induction energy meter, in order to obtain true value of energy, the shunt magnetic flux should lag behind the applied voltage by   (a) 90o (b) 0o (c) 45o (d) 60o

If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is   (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V

Sample -and -hold circuits in ADCs are designed to : - a) sample and hold the output of the binary counter during the conversion process b) stabilize theAD Cs threshold c) voltage during the conversion process stabilize the input analog d) signal during the conversion process sample and hold the ADC staircase waveform during the conversion process

Base 10 refers to which number system? a) binary coded decimal b) decimal c) octal d) hexadecimal

A single transistor can be used to build which of the following digital logic gates : - a) AND gates b) OR gates c) NOT gates d) NAND gates

Convert hexadecimal value 16 to decimal: - a) 2210 b) 1610 c) 1010 d) 2010

How many bits are needed to address 64 K memory: - a) 3 b) 10 c) 16 d) 32

Thermocouple is used to measure : - a) AC b) DC c) Both d) None

The main sources of Errors in Permanent Magnet moving Coil (PMMC) are due to : - a) weaking of the permanent magnet due to aging at temperature effects b) weaking of spring due to aging and temperature effects c) change of resistance of the moving coil with temperature d) all the above

The term absolute Pressure is used for a pressure measured relative to: - a) vacuum pressure b) some fixed pressure c) atmospheric d) all the above

A bimetallic strip is used to convert a temperature change - a) into mechanical displacement b) into electrical displacement c) into neither mechanical nor electrical displacement d) all of the above

Tachometer works essentially as a generator with output voltage proportional to magnitude of the : - a) Angular Velocity of the shaft b) Torque of the shaft c) Temperature of the shaft d) Back Lash of the shaft

Data Acquisition system are used to measure and record analog signal in different ways i.e. : -  a) Signals which originates from direct measurement of electrical quantities b) Signals which originate from the use of transducer. c) Signals which oscillates in simple harmonic motion and dies out slowly. d) Both (a) and (b)

The input voltage to an OP AMP is a large voltage step. The output is an exponential waveform that changes to 0.25 V in 0.1µs (microsecond). The slew rate of the OP AMP is : -  a) 5V/µs b) 2.5 V/ µs c) 3V/µs d) 4.5V/ µs

An aquadog is used in a 'CRO' to collect -  a) Secondary emission electrons b) Primary emission electrons c) Both Primary and Secondary emission electrons d) None of the above