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Describe 74LS139 memory decoder.
The 74LS139 is a dual 2-to-4 line decoder. This contains two separate 2-to-4 line decoders - all with its address, output and enable connections.
The Pin-out of the 74LS139
Explain modes of operation of programmable interval timer 8254. Mode 0 - Interrupt upon terminal count Mode 1 - Programmable one-shot Mode 2 - Rate Generator Mode 3 -
for the following circuit find i(t)
deriving formula of the frictional force
Q. An inverting amplifier is designed with three inputs, v 1 , v 2 , and v 3 , as shown in Figure. Determine the output voltage. Then indicate how the circuit may be modified to pe
Q For a parallel-plate capacitor with plates of area A m 2 and separation d m in air, the capacitance in farads may be computed from the approximate relation Compute the a
time period measurement
Hybrid parameters (or) h - parameters:- If the input current that is denoted as i 1 and output Voltage that is denoted as V 2 are takes as independent variables, input v
Electrical circuits and systems : Electrical systems allow energy to be conveniently delivered from the point of supply to the point of application - e.g. electric railways, ca
which ckt. Or components using for irregular ac sine wave change into pure sine wave.......
define all the symbols with their units of DC generater
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