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1. A PCM system uses 8 bits per sample and the analog signal is limited to 4.3 kHz. The PCM data is transmitted using (a) BFSK and (b) ASK. Determine the bandwidth required for transmission in each case. Assume that r = 0:55.
Find the resistance of 800 m of copper cable of cross-sectional area 20 mm . Take the resistivity of copper as 0.02 Ωm.
Voltage is referred as Potential difference among two points. Potential means its force. I think so.voltage defination is 100% correct.
a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and tha
Drift Current Density and Conductivity: Consider a conductor of length / meters and cross sectional area a square meters, as shown in Fig. Let the number of free electrons ava
Refer to the op amp circuit shown below. Let R 1 = 140 k_, R 2 = 10 k_, R 3 = 10 k_, R 4 = 20 k_, RL = 10 k_. Assume the op amp is ideal. Find the equation relating the
a. Describe the meaning of standing wave ratio. What is the formula for it, if the load is purely resistive? Why is a high value of SWR often undesirable? b. Determine how the c
Q. Analog communication systems? An analog message is a continuum of possible amplitudes at any given time, and analog signals are continuous in time and in amplitude, such as
Q. An n-channel JFET having V P = 3.5 V and I DSS = 5 mA is biased by the circuit of Figure with V DD = 28 V, RS = 3000 , and R 2 = 100 k. If the operating point is given by
discuss the factor affecting the emf induced in electric machines
Q. What are the different parameters of jfet ? A bipolar junction transistor (BJT) is a current controlled device that is output characteristics of the device are controlled by
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