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Q. Explain Read-only memory?
ROM is nonvolatile (because it maintains its contents even when its power is shut off) and is used to store data and programs that do not change during the operation of the system. The mask-programmed ROMs are read-only devices that are programmed for data storage during the manufacturing of the chip itself. These are generally less expensive devices for mass production. Character-font memory for laser printers is a good example. Programmable read-only memory (PROM) is a field-programmable memory that is fabricated by the manufacturer containing all 0s and is programmed irreversibly by the user by electrically changing appropriate 0s to 1s. PROMs are quite economical in small quantities. Erasable programmable read-only memory (EPROM) is nonvolatile and widely used in microprocessor systems for program storage. It can be erased by shining an ultraviolet light and reprogrammed if necessary. These are produced in lowtomoderate volumes.
Write a computer program to implement the finite difference method. The program can be in any computer language that is available within the school. Set up the code to find the pot
What is the disadvantages of diodes as a series element in a clipper?
Triac As the name suggests TRIAC is advice which has three electrodes and works on AC. The three terminals of triac are MTI ( Main Terminal ) MT2 ( Main terminal ) an
Explain the meaning of Synchronous Counters? In the synchronous counters the clock inputs of all the flip-flops are connected together and are triggered by the input pulses, the
A 25KVA, 3 phase, wye-connected, 400v synchronous generator has a synchronous impedance of 0.05 +j1.6 ohms per phase. Determine the full load voltage regulation at (a) 0.8 power
explain all the components involved in transmission of electricity
internal dc generator
Q. A two-pole rotating machine with a singly excited magnetic field system as its stator and a rotor (that carries no coil) has a stator-coil inductance that can be approximated by
The resistivity of pure copper is 1.56 micro-ohm -cm. An alloy of copper contains 1 atomic percent nickel has a resistivity of 2.81 micro-ohm-cm. An alloy of copper containing 3-
Q. What is the requirement of a hybrid in telephone networks? How does it work? Ans: Digital exchanges require receive and transmit signals on separate two-wire circuits. Th
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