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The subject of electrical measurements is such a large one that entire books have been written on the topic. Only a few basic principles will be introduced here. Practical measurements are made with real instruments, which in general disturb the operation of a circuit to some extent when they are connected. Measurements may be affected by noise, which is undesirable randomly varying signals.
Q. What is error-rate control? A system is said to possess error-rate damping when the generation of the output in some way depends upon the rate of change of the actuating sig
Current ratio The ratio is mainly used to give an idea of the company's ability to pay back its short-term liabilities with its short-term assets. The higher the current ratio
Q. A six-pole, double-layer dc armature winding in 28 slots has five turns per coil. If the field flux is 0.025 Wb per pole and the speed of the rotor is 1200 r/min, find the value
what is working of dc machines?
Testing for Continuity : You may have observed sometimes that when all the connections in the appliance as well as the plug are made properly the appliance may still not work. Thi
Q. Figure (a) shows the seven-segment array that iswidely used to formthe decimal digits 0 to 9 in LEDdisplays, as indicated in Figure(b). Let the inputs be the four binary digits
A 3-phase, wye-connected, 11.8 kV, 100 MVA turbo- generator of 0.8 power factor lagging has a synchronous reactance of 2.0 p.u. on rating. The generator is driven by a steam turbin
Q. Describe about Absolute Poverty? Poverty defined with respect to an absolute material standard of living. A person is absolutely poor if their income does not allow them to
Q. A person, while driving a car in a cyclone and waiting at an intersection, hears a thumping sound when a power line falls across the car and makes contact with the chassis. The
Q. With suitable examples differentiate between limiting and known errors. Sol. Limiting Errors (Guarantee Errors): The accuracy and precision of an instrument depends upon
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