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Question 1:
A source of emf 10V and internal resistance 6000 is connected 6000Ω load via a resistive attenuator network as shown in fig 1.Calculate:
1- The output voltage (Vo).2- The attenuator input voltage (V,).3- The attenuation expressed in decibels.
Question 2:
a) A node is the junction of three or more branches of a circuit. Nodal analysis can be considered an extension of Kirchhoff's current law. Describe Nadal's method of application.
b) Find the currents in each component of circuit 1.
Design the 4-bit adder/subtractor circuit with look ahead carry circuit. Draw a logic circuit diagram of your circuit with pin numbers on all logic gates.
a voltage v(t) = 24cos(2000t-45degrees) is applied across a parallel connection of a 5kΩ resistor and 100nF capacitor. find the steady state current ic(t) through the capacitor and ir(t) through the resistor.
The substrate concentration of a N-type semiconductor is ND=10^15cm^-3. the wafer is doped with NA= 1.1*10^15 cm^-3, so that a very lightly doped P-type region is created at the surface. What is the concentration of electrons in the P-type region
Design a second-order band-pass filter for a system with sampling frequency of 18 kHz that is tuned for f=5kHZ The filter should not have any sample delay (the numerator and denominator orders are equal)
Then find the total energy stored in the battery before it is connected to the bulb. Determine the total amount of charge that has pessed through the wires that connect the battery and the bulb.
Include the unused states in the design, arranging the circuit to switch from any unused state to the 'main sequence' within one clock cycle, and show the state diagram that applies here. Clearly show all the steps of the design procedure used.
A circuit contains two flip-flops connected to a voltagesource of +10 Volts, each flip-flop draws a current of 10 mA during its operation, if we neglect the power dissipation of the remaining circuit, then what will be the overall power dissipatio..
Develop the pseudo-code below for a program that will retrieve 2 bytes (NUM1 and NUM2) from memory, determine which is closest to the numeric value 50, and indicate the result by setting a variable named "CLOSEST" to 1
Why can't a video signal such as an NTSC analog television signal be transmitted over a two km length of loaded twisted pair cable with a frequency range 300 Hz to 3,400 Hz? What is the bandwidth occupied by an NTSC video signal?
A mass memory system has 24 address lines and 16 data lines. (a) What is the size of this memory system. (b) How many 64K x 8 memory chips are needed to build this memory system.
A wire has a resistance of 29.7-ohm . It is melted down, and from the same volume of metal a new wire is made that is 4 times longer than the original wire. What is the resistance of the new wire
he input tothe receiver is a modulated wave of 0.3W average power and Gaussian noise of one-sided power spectral density of 10-8W/Hz. 1.if the detector is an envelope detector and the modulatedwave is A(1+0.8cos1000t)cos(6.28x1000000t),
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