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Explain BIOS
The IBM PC has in its ROM a collection of routines, each of which performs some particular function such as reading a character from keyboard, writing character to CRT. This collection of routines is referred to as Basic Input Output System or BIOS.
Q. Explain Integral-error or reset control? A control system is said to possess integral-error control when the generation of the output in some way depends upon the integral o
a) Describe Schmitt trigger with the help of transfer characteristics. b) Also get the expression of hysteresis voltage VH and output waveform for sinusoidal input signal
a. Enlist the benefits and drawbacks of in band and out band voice signalling? b. Describe Channel Associated mode, Channel Non-Associated mode and QuasiAssociated mode of commo
Q. (a) Determine the voltage at A in Figure . (b) With V i = 10 V, R 1 = 10 k, R 2 = 1000 , and A = 100, find the current i .
Q. A three-phase, 600-kVA, 2300:230-V,Y-Y trans-former bank has an iron loss of 4400Wand a full-load copper loss of 7600 W. Find the efficiency of the transformer for 70%full load
Q. A negative impedance converter is used, as shown in Figure. Show that the load current i L is given by v in /R, which is independent of Z L . Note that since the load sees a cu
Mode1 When the positive pulse from PWM is applied to the transistor Q shown in figure it gets turned on. In this condition current flows through transistor Q and.
short note on cumulative error
Q. Mention some characteristics of transistors? · When a NPN transistor is working, there is always a constant 0.6 volt drop between the base and emitter, i.e., the base is alw
Q. What is DTMF dialling? DTMF dialling 1. Uses push buttons 2. Uses 8 different frequencies in pairs. 3. 16 different characters can be represented. 4. The f
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