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Design a polarity protector for a citizens band (CB) radio thatconnects to the electrical system for an automobile through a"cigarette lighter" plug. Your circuit should protect the radioshould its power supply leads be connected backwards. Such an errorcan severly damage the radio. There are at least two approaches tothis problem, one involving series diodes, the other involvingparallel diodes. Consider the possible solutions and discuss the relative advantages and disadvantages of each method.
A series RC circuit is powered by a voltage supply of 120Vac and60Hz. The resistor has a resistance of 80W and capacitive reactanceis 60W. (1) Sketch a schematic for this circuit (2) Determine the capacitance of the capacitor
A shunt dc motor has RA= .1 ohmn and VT = 440 V. For an output power of 50 hp, we have nm=1500 rpm and IA = 103 A. The field current remains constant for all parts of this problem.
How many volts must be applied to a 3- ohm resistor to result in a power dissipation of 752W 3) A 0.27-k ohm resistor is rated 2W. Compute the maximum voltage that can be applied and the maximum current that it can carry without exceeding it..
1-phase 2-winding transformer is rated 30 kVA, 360/90 V, 60 Hz. A source connected to the 360-V winding supplies an impedance load connected to the 120-V winding. The load absorbs 15 kVA at 0.8 p.f.
A Sequential circuit has two inputs x and y and two outputs two and three. The output two is 1 if the total number of 1 inputs on x and y is a multiple of 2 (including 0 ). The Output three should be 1 if the total number
Compute the correlation coefficient of two channels with frequency separation of 100 kHz and temporal separation 5 ms. Assume that the maximum Doppler shift of the channels is f_d=kv=100Hz and the rms delay spread is S_tao=1 µs.
Using eye diagram drawings of PAM NRZ waveforms used to transmit bits in the baseband show and explain how awgn can effect bit error rates and how timing jitter can effect bit error rates.
A silicon diode has a doping profile such that ND = ax3. What is the depth of the junction assuming the p side is uniformly doped with NA per cubic cm. Assume the x origin is at an ideal ohmic contact on the n side of the diode.
Sketch the unit step response of the system below. Show the magnitude of the steady state on the c(t) axis of your response curve and the value of the time constant on the t axis. T(s)=C(s)/R(s)=5/s+2.5
If the average heat content of the coal is 8,600 Btu/lb, and a typical coal-fired power plant operates at 40% efficiency, how many kW-hr of electricity was produced in 2010 using this coal
A consumer protection agency conducts opinion polls to determine the quality (excellent, good, fair, bad) of products imported. if the agency conducted a poll in wich 1000 randomly selected individuals were contacted..
The armature resistance and series field resistances are 0.06-ohm and 0.04-ohm respectively. If current taken remains same, calculate the series resistance required to reduce the speed to 600 rpm.
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