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Briefly describe the process of digital-to-analogue conversion in a binary ladder network. How does it differ from the simple resistive network used for the same purpose? Write an expression for the output analogue voltage for an n-bit binary ladder network.
A power amplifier employs an output stage whose gam vanes from 2 to 12 for various reasons. What is the gain of an ideal (non varying) amplIfier connected to drive it so that an overall gain with feedback of 100 ± 5% V/V can be achieved
1.write down the electrical status equation for the circuit with serial connection of RLC- elements in vector form and darw diagram for this circuit. 2. Describe the work of electrical source in the voltage generator regime. and what is the working..
An audio amplifier system, using a noinverting op-amp circuit, needs to have a small-signal bandwidth of 20kHz. The open-loop low-frequency voltage gain of the op-amp is 10^5 and the unity -gain bandwidth is 1 MHz.
What is a curl meter? How does it help visualize the behavior of the curl of a vector field?
The four alkaline batteries cells store a total of 200 Watt-seconds of energy. If the cassette player is drawing a constant 10mA from the battery pack, how long will the cassette operate at normal power
What is the maximum value of normalized reactance that can be obtained with a shorted stub of the same type of transmission line? Assume α is small.
A variant of the binary symmetric communication channel described in class is called a binary erasure channel. The transmitter sends a ‘0' or ‘1,' but at the receiver there are three possibilities: a ‘0' or ‘1' or ‘undecided bit..
For the bar hanging under its own weight shown in Figure, determine the nodal displacements using (a) two equal-length elements and (b) four equal-length elements.
What is the purpose of relay MR?
Explain the relationship between the input and the output ac signals for a n-channel BJT voltage-divider bias. What components/parameters does the voltage gain depends on
Show and explain how you could make a 2-bit counter that will count up or down on an external control signal. Explain the difference between the input and output times.
A charge Q is uniformly distributed over the wall of a circular tube of radius b and height h. Determine V and E on its axis at a point outside the box.
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