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Explain isolated I/O scheme.
In I/O mapped I/O scheme the addresses allocated to memory locations can also be assigned to I/O devices. Because the same address may be assigned to an I/O device or a memory location, the microprocessor should issue a signal to distinguish when the address on the address bus is for an I/O device or a memory location.
Theoretical calculations The characteristics of the d.c. machine you will be investigating are given on the last page of this part. Use 200V DC supply for both armature and fie
Explain the effect of a dielectric on the behaviour of a capacitor. If two parallel plates are separated by a distance 'd' (meters) in vacuum and are kept at a potential diffe
Q. Write short note on Quantization? Quantization: This is first step in PCM. Total amplitude range of the modulating signal is divided into a number of standard levels calle
Positive Clippers The shunt connected positive clipper, in which the diode conducts for positive half cycle and hence, the output is a straight line. During the negative half c
Data Copy Operations Instructions which are used to copy data from one location to another location kept in this category. The location from which data is copied is cal
Cite a specific example in which the engineer must provide maximum efficiency for a given cost
Q. Write a short note on types of enclosure of machine. Sol. The various types of d.c. machine : (1) Magnetic frame or Yoke (2)
Q. What is a differentiator circuit? By introducing electrical reactance into the feedback loops of op-amp amplifier circuits, we can cause the output to respond to changes in
Q. A magnetic circuit is found to have an ac hysteresis loss of 10 W when the peak current is Im = 2 A. Assuming the exponent of Bm to be 1.5, estimate Ph for Im = 0.5A and 8A.
How can I get an oscillator to genarate a sinusoid instead of a triangle wave
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