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Q. A practical voltage source is represented by an ideal voltage source of 30 V along with a series internal source resistance of 1.2 . Compute the smallest load resistance that can be connected to the practical source such that the load voltage would not drop by more than 2% with respect to the source open-circuit voltage.
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 connection
Q. A shift register can be used as a binary (a) divide- by-2, and (b) multiply-by-2 counter. Explain. Q. Show a block diagram of a 4-bit shift-right register using JKFFs.
cite a specific example in which the engineer must provide maximum efficiency for a given cost.
General Purpose Diodes The general purpose diodes have relatively high reverse recovery time. The diodes are general made by diffusion. They are used in low speed app
Future scope on MATLAB in India
In the conventional dc machine (with a closed continuous commutator winding on its armature), for example, full-wave rectification of the alternating voltage induced in individual
Calculations of sending line voltage
Q. What do you understand by progressive control? Progressive Control: Step by step system is an example of progressive control. The connection is set up in stages, in response
Q. Show polarity markings for a single-phase transformer for (a) subtractive polarity, and (b) additive polarity.
Mode 2 In this mode transistor gets turned off by the negative output of PWM current flows through inductance L diode D then divide into two parts one flows through
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