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A series circuit consists of a voltage source and four resistors (R1=1k-ohm; R2=30-ohm; R3=470-ohm; R4=2k-ohm). The resistor of 1k-ohm has a voltage of V1=3V across its terminals. a) Find the current
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
a) What is the total resistance corresponding to 1kohm, 4kohm, 10kohm, 4.7kohm resistors connected in series b) What is the total resistance corresponding to 10ohm, 100ohm, 1kohm, 10kohm resistors con
A 1 F capacitor is being charged through a 100 Ohm resistor. How long will it approximately take for the capacitor to reach about 63% of its final charge
Design a 4-bit down-counter that has three control inputs: cnt enables counting up, clear syncrhonously resets the counter to all 0s, and set syncrhonously sets the counter to al
A balanced three-phase 60 Hz source supplies power to a balanced-connected inductive load. The line voltage is 440 V, the line current is 8.2 A, and the power delivered to the load is 5 kW.
Write a VHDL description of a BCD-to-Binary converter. Initially a three-digit BCD number is placed in the A register. When St signal is recieved, conversion begins, and the resulting binary number
A certain two-terminal circuit has an open-circuit voltage of 9V . When a R = 225-r load is attached, the voltage across the load is 7V . Determine the Thevenin resistance for the circuit.
A somewhat discharged automotive battery has an open-circuit voltage of 12.5 V and supplies 50 A when a 0.1-? resistance is connected across the battery terminals.
Using VHDL, define a module called "mux 4 to 1" which implements a (4:1) multiplexer. The module should take in 4 data inputs called D3, D2, D1, and D0, and two select inputs called S1 and S0. It sh
Consider a long wire represented as distributed RC sections. The total wire length is 5mm. To reduce the wire delay, we uniformly insert n buffers along the wire. Suppose r=12Ohms/m and c=0.2fF/m an
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.40 m/s2. The same force applied to a second object of mass m2 produces an acceleration of1.60 m/s2. If m1 and m2 are
On a breadboards, hook up an IR LED to provide an infrared light source for signaling the phototransistor as shown in Figure 2 below. Use a pushbutton switch to turn the IR LED on and off.
What are the differences between volatile and nonvolatile memory What are advantages and disadvantages of volatile and nonvolatile memories
A load is delivering 1400 VARs of reactive power at a power factor of 0.96 leading. Determine the complex power S and the average power P for the load.
Determine the dBm level for an output of 120mW A power level of 100W is 6dB above what power level Find the output voltage of an amlifier if the applied voltage is 20mV and a dBv gain of 22 dB is atta
a solid cylindrical conductor of raduis a and charge Q is coaxial with a cylindrical shell of negligible thickness,radius b,and charge -Q. FIND THE CAPACITANCE OF THIS CYLINDRICAL capacitor if its l
At what tempurature will intrinsic silicon become a conductor based on the definition resistivity < 10^-3 Assume that mu sub n is 100 cm^2/Vs and mu sub p is 50 cm^2/Vs. (Note that silicon melts
given the electron and hole concentrations for a 2 micro meter region of Silicon. At x=0 the concentration of electrons is 10^16 and the concentration of holes is 1.01x10^18. At x=2 micro meters the
A separately excited dc motor turns at 1200rpm when the armature is connected to a 115V source. Calculate the armature voltage required so that the motor runs at 1500rpm.
A system is described by the differential equation ty'(t)-8y(t)=x(t). Classify the system as to linearity, time-invariance and stability. A system is described by the equation y(t)= \(\int_{t/3}^
Box 1 contains 5 red, 6 white, and 9 blue balls. Box 2 contains 7 red, 8 white, and 4 blue balls. A ball is withdrawn at random from Box 1 and placed in Box 2. Then, a ball is taken at
For use in a liquid crystal display, you want an electrode that is transparent to all visible light. You decide to use a doped semiconducting oxide with a mobility of 10^(-2) m^2/V-s. What is the
Adding dopants to a sample of silicon is found to reduce the Hall coefficient by a factor of 10 and increase the conductivity by a factor of 5. What effect has this dopant addition had on the mean f
The power dissipated in the resistor R0 is 89 W when connected to a 10V source. Find the total dissipated power if 3 resistors identical to R0 are connected in series to a 10V source.