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Q. What is an oscillator? Discuss the advantages of Oscillators ?
An oscillator is a system consisting of active and passive circuit elements to produce a sinusoidal or other repetitive waveforms at the output without the application of an external input signal. The function of an oscillator is opposite to that of a rectifier that converts ac power into a dc power. Oscillations are produced without any external signal source. The only input power to an oscillator is the d. c. power supply. It receives d. c. energy and changes it into a. c. energy of desired frequency. The frequency of oscillations depend upon the constants of the device.
Q. Three loads in parallel are supplied by a single phase 400-V, 60-Hz supply: Load A: 10 kVA at 0.8 leading power factor Load B: 15 kW at 0.6 lagging power factor Load C:
Calculate the current flow in 30Ω resistor for the circuit in figure using Norton Theorem.
The corners of wedge-shaped block are A(0,0,2), B(0,0,3), C(0,2,3), D(0,2,2), E(-1,2,2) and F(-1,2,3) and the reflection plane goes the Y-axis at 450 between (-X) & (Z) axis. Calcu
EXPLAIN UJT WITH ALL SUBTOPICS CONSISTS
Q. Determine the Fourier series for the periodic wave - forms given in Figure.
Power Distribution System The Distribution System contains: - Sub-transmission system in voltage ranges from 33 kV to 220 kV. The energy goes from power subs
Q. Show the Methods of material handling? Methods of material handling during operations and maintenance activities shall be considered for all facilities to ensure that the fi
Q. A common requirement is conversion from one digital code to another.Develop a table of the BCD code and the excess-3 code to be derived from it, for the decimal digits 0 to 9. S
#quest explain cro..
Voltage Quality Standards - KPI The term voltage quality (or power quality) is an umbrella concept for a variety of disturbances within a power system. The quality of delivere
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