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An inductor has a negligible resistance and an inductance of 200 mH and is connected in series with a 1 k resistor to a 24 V, d.c. supply. Determine the time constant of the circuit and the steady-state value of the current flowing in the circuit. Find (a) the current flowing in the circuit at a time equal to one time constant, (b) the voltage drop across the inductor at a time equal to two time constants and (c) the voltage drop across the resistor after a time equal to three time constants.
What are the main differences between MS antennas and BS antennas. List the antennas used at mobile stations and describe the construction and characteristics of one of them in detail.
[Hint: As you should explain, this is equivalent to showing that the sum of two forward light-like vectors is forward time-like, unless the spatial parts are parallel.]
A radio receiver has antenna noise temperature of 3000 K and equivalent noise temperature of 7000 K for its feeder and amplifier cascade. It requires Eb/No = 15 dB to provide Probability of error of 10^-15 (using BPSK).
Design a combinational circuit that detects an error in the representation of decimal digit in Excess-3. The output of the circuit must be equal to logic-1 when the inputs contain any one of the six invalid Excess-3 codes.
A collector modulated transmitter has a supply voltage of 48 V and an average collector current of 600 mA. What is the input power to the transmitter. How much modulating signal power is needed to produce 100 percent modulation.
a)What is the voltage across a 220-ohm resistor if the current through it is 5.6 mA b)What is the current through a 6.8-ohm resistor if the voltage drop across it is 24V c) What is the power delivered by a 6 V battery if the current drain is 750mA
Design a state machine that repeatedly produces through the following sequence of outputs 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 0, 1,2, 3, 2, 1. Note the output is not necessarly the current state ofthe machine, but may be some function of the current sta..
A band filter has the following specs: Center frequency: 1500 Hz Bandwidth: 200Hz Chebyshev filter with a passband ripple of 1 dB 20-dB attenuation of te stopband gains at 1200 HZ and 1800 HZ. Determine the order of the lowpass prototype function.
Find the magnitude of the electric field at all points in space both inside and outside the slab, in terms of x, the distance measured from the central plane of the slab. What is the field for x = 1.00 cm What is the field for x = 8.00 cm
The solution to Power Factor, Two single-phase loads are connected in parallel across a 415 V, 50 Hz supply. One load is rated 130 kW at a power factor of 0.75
The output of the power supply should be a 5 Vdc with no more the 5 mV peak-peak ripple. 3) The output must be galvanically (transformer) isolated from the input, but NO 60 Hz transformers are to be used. 4) The load can be assumed purely resistiv..
The battery capacity is 60 ampere-hours. The current drawn is 4 amps. How long does it take to be fully discharged
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