Knowledge in GATE EEE
UG Cable(EEE)
An underground cable is a cable that is buried below the ground. They distribute electrical power or telecommunications. Such cables are an alternative to overhead cables, which are several meters above the ground. Overhead cables are often replaced with underground cables. Downtown areas with many tall buildings usually have few or no cables above ground, This is mainly for aesthetic purposes because underground cables can not be seen.[1] They are also less dangerous to people because they are out of the way. They cost more to install, but last longer.
AAYUSH LAL ROY
Electrical Starters
Starters are used to protect DC motors from damage that can be caused by very high current and torque during startup. They do this by providing external resistance to the motor, which is connected in series to the motor’s armature winding and restricts the current to an acceptable level.
Network Theorem
Electric circuit theorems are always beneficial to help find voltage and currents in multi loop circuits. ... Other group of network theorems which are mostly used in the circuit analysis process includes Compensation theorem, Substitution theorem, Reciprocity theorem, Millman's theorem and Miller's theorem.
Parallel Operation of Transformer
The Transformer is said to be in Parallel Operation when their primary windings are connected to a common voltage supply, and the secondary windings are connected to a common load.
Transistor models
Transistors are simple devices with complicated behavior. In order to ensure the reliable operation of circuits employing transistors, it is necessary to scientifically model the physical phenomena observed in their operation using transistor models. There exists a variety of different models that range in complexity and in purpose. Transistor models divide into two major groups: models for device design and models for circuit design
Transducers
A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another.[1] Transducers are often employed at the boundaries of automation, measurement, and control systems, where electrical signals are converted to and from other physical quantities (energy, force, torque, light, motion, position, etc.). The process of converting one form of energy to another is known as transduction.[2]
Faraday's and Lenz's law
Lenz's law (pronounced /ˈlɛnts/), named after the physicist Emil Lenz who formulated it in 1834, states that the direction of the current induced in a conductor by a changing magnetic field is such that the magnetic field created by the induced current opposes the initial changing magnetic field.
Synchronous motor
A synchronous electric motor is an AC motor in which, at steady state,[1] the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycles. Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the oscillations of the line current. The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field of any AC motor. A synchronous motor is termed doubly fed if it is supplied with independently excited multiphase AC electromagnets on both the rotor and stator.
Signal Processing Circuits
Signal processing is an electrical engineering subfield that focuses on analysing, modifying and synthesizing signals such as sound, images and biological measurements.[1] Signal processing techniques can be used to improve transmission, storage efficiency and subjective quality and to also emphasize or detect components of interest in a measured signal.
Wein Bridge Oscillator
One of the simplest sine wave oscillators which uses a RC network in place of the conventional LC tuned tank circuit to produce a sinusoidal output waveform, is called a Wien Bridge Oscillator. The Wien Bridge Oscillator is so called because the circuit is based on a frequency-selective form of the Wheatstone bridge circuit. The Wien Bridge oscillator is a two-stage RC coupled amplifier circuit that has good stability at its resonant frequency, low distortion and is very easy to tune making it a popular circuit as an audio frequency oscillator but the phase shift of the output signal is considerably different from the previous phase shift RC Oscillator.
GATE PAPER with Solutions
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Shivraj Balasaheb Roman
GATE PAPER with Solutions
This PDF contain question paper of GATE 2017 with related solutions. all the aspirants of Gate and other Civil services should read this file once to get some knowledge from previously asked Gate question paper.