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Q. Give a brief description of integrating circuits ?
Integration is a summation of area. An integrating circuit produces an output voltage which is proportional to the area enclosed by the input waveform. The shape of the output voltage waveform is dependant upon the relationship between the time constant (RC) and the pulse width (PW). An integrating circuit is an RC circuit with the output taken across the capacitor and RC ≥ (10 x PW).
Metering Technologies An electric meter or energy meter is a device in which measures the amount of electrical energy supplied to customers of an electric supply company. Elec
Q. Illustrate working of Direct-coupled Amplifiers? Direct-coupled Amplifiers : The following figure shows a direct-coupled amplifier consisting of two stages. A dc voltage i
(a) Provide examples of intentional electromagnetic sources and examples of unintentional sources. (b) Describe the process of the formation of lightning. (c) Reduce each of
Q. A 60-Hz, 440-V, three-phase system feeds two balanced wye-connected loads in parallel. One load has a per-phase impedance of 8 + j3 and the other 4 - j1 . Compute the real po
Athree-phase, 440-V, 60-Hz, four-pole induction motor operates at a slip of 0.025 at full load, with its rotor circuit short-circuited. This motor is to be operated on a 50-Hz supp
Q. Give the classification of oscillators. Discuss the frequency stability of oscillators. Oscillators are classified in the following different ways. 1. According to the wa
Q. For the circuit of Figure, determine and sketch i L (t) and vC(t) for inductance values of (a)3/4 H, (b) 2/3 H, and (c) 3/17 H. Note that the inductance values are chosen her
Q. What is a clipper circuit? Clipping circuits are linear wave shaping circuits. The main function of 'clipper' is that it clips off a part of input waveform i.e., it cut off
Q. Explain working of induction machine rotor? The induction machine rotor may be one of two types: the wound rotor or the squirrel-cage rotor. The wound rotor has a polyphase
how to calculate voltage when 3 voltage sources are given?
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