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An engineer attempts to build a remotely actuated door lock for asecurity operation. The door is powered by an electromagnetic actuator whose coil can be modeled as a 500Ω resistor .The actuator requires a minimum of 100mA of current for reliable operations.
a) The engineer attempts to power the actuator with a voltagesource and simple switch located 50m from the door through a pairof thin, nearly invisible wires having a resistance of 20 Ωper meter of length.What value of voltage will the engineer requirein order to properly operates the actuator?
b) What safety problem might the engineer encounter in attempt in gto implement this design?
c) Design an improved version of the circuit using a BJT inverterlocated at the site of the actuator. What is the maximum voltage-source value required any where in the system?
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
Desing a mod-16 asynchrous ripple up counter by using j-k flip-flops. You need to design a j-k flip flop first and use it as the component in mod-16 up counter design. Show both j-k flip-flop design implementation results .
A string of Christmas tree lights consists of ten (2W, 11V) bulbs connected in parallel. a) What current flows in each bulb b) What is the resistance of each bulb
State two signs of SCID. Explain two options for expecting parents who have family members with SCID and are concerned their child will be affected with the immuno deficiency. Why might parents choose these options
A long narrow rod has an atomic density of 5*1028 m-3. Each atom has the polarizability of 10-40 F m2. Find the internal electric field when an axial field of 1 V/m is applied.
A combinational logic circuit has 3 outputs as described below: F1=Minterm(0,3,4) F2= minterm(1,2,7) F3= Maxterm=(0,1,2,4) Implement the circuit using a single decorder with active high outputs and external 2 input OR gates
A walker's cassette tape player uses four AA batteries in series toprovide 6V to the player circuit. The four alkaline battery cellsstore a total of 200 watt-seconds of energy. if the cassette playeris drawing a constant 10mA from the battery pack
After each number is input, print a running average, calculated with the average() function described above. If the average is the last average to be displayed, indicate it is the final average.
A Si p+-n junction has a donor doping of 5*10^16 cm^-3 on the n side and a cross sectional area of 10^-3 cm^2. If τ(p)= 1μs and D(p) = 10cm^2/s, calculate the current with a forward bias of .5V at 300K.
A thin ,non conducting line of charge lies along the x axis. One end is at x=-1.00m and the other end is at x=+1.00m. The total charge on the line is 5.00 µC. calculate the vector (magnitude and direction) of the electric field E at point P due to ..
For a complex load of 100 + 25 j ohm. find the matching circuit consist of ideal capacitor and/or inductor to match the load to 50 ohm impedance at 500MHz. The solution should include circuit schematic and values of each component
a resistor is required for an application that requires its value to be no less than 7.1k ohms and not more than 7.9k ohms. determine the nominal value and the maximum tolerance of the resistor you could use. explain.
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