Renu Banswani

gravatar for Renu Banswani
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kalyan

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Posts by Renu Banswani

<prev • 502 results • page 1 of 51 • next >
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Answer: A: The emitter bias configuration as shown in following figure has the specificatio
... $\because$ $I_c = \frac{1}{2} Icsat$ $= \frac{1}{2} \times (8MA) = 4mA $ $I_cq = 4MA$ $V_cc = 28$ ![enter image description here][1] $\therefore$ $I_c = \frac{v_cc - V_c}{R_c}$ $4mA = \frac{28-18}{R_c}$ $\therefore$ $R_c = \frac{10}{4mA} = 2.5 K$ $R_c = 2.5 K$ Selecting $V_CEQ = \frac{1}{2} ...
written 1 day ago by Renu Banswani10
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The emitter bias configuration as shown in following figure has the specifications.
... $I_cq = \frac{1}{2}$ $I_csat$ $I_csat = 8mA$ Vc = 18 v and B = 110 Determine $R_c, R_t$ and $R_B$ ![enter image description here][1] Solution: Drawing DC load line for above ckt ![enter image description here][2] [1]: https://i.imgur.com/vrXaZgb.png [2]: https://i.imgur.com/6dneSq1.pn ...
renu written 1 day ago by Renu Banswani10
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What is meant by Nyquist rate in sampling and explain its significance.
... The minimum sampling rate of "2w" samples per second for a signal x(t) having maximum frequency of "w" $H_2$ is called as "Nyquist rate" The reciprocal of Nyquist rate i.e. $(\frac{1}{2w})$ is called as the Nyquist internal. Nyquist rate = 2w $H_2$ Nyquist interval - $\frac{1}{2w}$ seconds. - ...
renu written 1 day ago by Renu Banswani10
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What is multiplexing in communication system? Draw block diagram of TDM-PCM system and explain.
... - Multiplexing is the process of simultaneously transmitting two or more individual signals over a single communication channel. due to multiplexing it is possible to increase the number of communication channels so that more information can be transmitted. - The typical applications of multiplexin ...
renu written 1 day ago by Renu Banswani10
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Explain principle of FDM.
... - The operation of FDM is based on sharing the available bandwidth of a communication channel among the signals to be transmitted, this means that many signals are transmitted simultaneously with each signal occupying a different carrier. - Generally, the FDM systems are used for multiplexing the a ...
renu written 1 day ago by Renu Banswani10
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Draw and explain colpitts oscillator.
... In colpitts oscillator CE amplifier is used as amplifying element and LC circuit has a feedback element. Since CE amplifier provides phase shift of 180 degree between input and output, therefore feedback tank circuit has to provide additional 180 degree phase shift to full-fill Barkhausen's criter ...
renu written 1 day ago by Renu Banswani10
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What is the source of the lekeage current in a transistor
... If the emitter current of a transistor is 8MA and 1B is $(\frac{1}{100})$ of 1c determine the levels of 1C and 1B. **Solution:** Source of leakage current in a transistor. In BJT, as temperature increases covalent bonds in semiconductor lattice breaks and minority charge carriers are generated. th ...
renu written 1 day ago by Renu Banswani10
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Justify that adaptive delta modulation superior to delta modulation.
... Adaptive delta modulation is a delta modulation system where step size is automatically varied depending upon the input analog signal. Output of the transmitter is string of continuous 1's or 0's, this indicates that overload has occurred that means DAC has lost the track of analog signal, with ada ...
renu written 1 day ago by Renu Banswani10
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Explain the concept and significance of CMRR and slew rate in case of op-amps.
... Consider op-amp in differential mode. ![enter image description here][1] $V_0 \alpha (v_1 - v_2)$ $V_o = Ad ($v_1 - v_2)$ -----(1) where Ad is differential mode gain consider op-amp in common mode. ![enter image description here][2] $\therefore$ $V_o = Acm,Vcm$ ------(") where Acm is common m ...
myposts written 1 day ago by Renu Banswani10
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Determine the output voltage for the circuit.
... Determine the output voltage for the circuit, if $V_2 = 5v$ and $V_2 = 3v$ ![enter image description here][1] **Solution:** Consider only $V_1$ is applied and $V_2$ is $V_1$ is grounded. ![enter image description here][2] To find $v_x$ ![enter image description here][3] $= \frac{20k}{20k + 20 ...
myposts written 2 days ago by Renu Banswani10

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