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Q. Explain Working of Liquid-crystal display?
This display needs only microwatts of power (over a thousand times less than a LED) and is used in such devices as electronic wristwatches.With the application of an electric field the molecules of the liquid-crystal material are straightened out, absorbing the light, and the display appears black. With no electric field applied, the display appears as a silver mirror because the light is reflected.
Two single-phase 60-Hz sinusoidal-source generators (with negligible internal impedances) are supplying to a common load of 10 kW at 0.8 power factor lagging. The impedance of the
Features of tariff policy: For projects whose tariff is determined by performance- based cost of service regulation, the advantages of decreased tariff after full depreciation
distingish between maximum and minimum modes of operations of 8086 with timing diagrames
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
The dielectric constant of air is practically taken as (A) more than unity. (B) Unity. (C) less than unity. (D) Zero.
CMOS processes: The low-performance "lateral" bipolar transistors occasionally employed in CMOS processes are sometimes designed symmetrically, i.e., with no distinction betwe
Explain working of Encoders? Encoding is the process of forming an encoded representation of a set of inputs, and it is the converse of the decoding operation. An encoder is a
Semiconductor Material: Semiconductor is a material that has a conductivity level somewhere between the extreme of an insulator and a conductor Resistivity of a material
What is Commutator? Explain in brief about the Commutator action in dc generator.
Gate terminal - field-effect transistor: The names of the terminals consider to their functions. The gate terminal might be thought of since controlling the opening and closin
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