Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
find the complete functions, p(t) and w(t) supplied by the element, not just a number, and graph p(t) and w(t). Choose appropriate intervals of time for your graphs. Assume that both v(t) and i(t) a
at the frequency f=12khz, a filter is designed to attenuate the input signal by 78db, find the amplitude of the output signal if the 12khz input has an amplitude of 1V.
Consider points P(2,4,3) and Q(1,-5,2) in three dimensional space: Find the position of vectors r1 and r2 for P and Q in terms of unit vectors i,j,k Determine graphically and analytically the resultan
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 individ
design a multirange ammeter with ranges of 1-10mA,0-100mA, and 0-1500mA, using a 5mA movement whose internal resistance is 3.8ohms. draw a circuit diagram of the meter.
A series RLC circuit is connected to a voltage source x(t). The output y(t) is taken across the capacitor. The negative side of x(t) and y(t) is the common ground. The values of the elements are: R=
Design an amplifier circuit to amplify the small output voltage of a transducer of 50mV peak to deliver an output voltage of 8V peak to a 10k ohm load. (This design will produce 1 simulated circuit
The noise voltage in an electric circuit can be modeled as a Gaussian random variable with 0 mean and 10^-4 standard deviation. This noise passes through a half wave rectifier with the characterist
A 60-watt outdoor lightbulb is advertised as having an average life (i.e. MTTF) of 1,000 operating hours. However, experience has shown that it will also fail on demand an average of once every 120
The time to failure of fluorescent lights in a large office building is exponentially distributed with a failure rate of 0.03125 hours. How many spare tubes must the building custodian maintain to
Consider two identical and redundant CFR (Constant Failure Rate) components having a guaranteed life of 2 months and a failure rate of 0.15 failures per year. What is the system reliability for 10,
The average power is not necessarily equal to the average current times the average voltage. To show this, find a voltage waveform and current waveform where each has a zero average value but their
find the one-way propagation delay for a 10 meter length. Find the two-way propagation delay. (The two-way delay is the time it takes for the wave to travel from the source to the load and back to
A buffer amplifier with a gain of 1 V/V has an input resistance of 1M and an output resistance of 10 ohm. It is connected between a 1-V, 100-k ohm source and a 100-ohm load. What load voltage result
Two balanced three-plia.se loads that are connected in parallel are fed by a three-phase line having a series impedance of (0.4 + j2.7) ohm per phase. One of the loads absorbs 560 kVA at 0.707 power
A machinable grade of aluminum is to be milled on an NC machine with a 20 mm diameter four tooth end miling cutter, Cutting speed = 120 m/min and feed = 0.008 mm/tooth. Convert these values to rev/m
A 50 hp, 460 V, three phase induction motor draws 61 amps when operating at rated voltage and at a power factor of 0.85 lagging when supplying a rated load. knowns: 1hp=746watts effeciency (n) = Pou
Suppose two points P1 and P2 are tossed at random and independently onto a line segment of length L. What is the probability that the absolute distance between the two points does not exceed l.
Calculate the location of Ei in silicon at liquid nitrogen temperature(77k), at room temperature 300k and at 100 degree celsius (let mp =1.0mo and mn= .19m0) Is it reasonable to assume that Ei is th
A temperature sensor has a static transfer function of 0.15mV/degrees C and a time constant of 3.3 s. If a step change of 22 degress C to 50 degress C is applied at t = 0, find the output voltages a
Suddenly there is a short-circuit on the electric grid, and the electrical output goes to zero for 2 seconds. Calculate the increase in speed in rpm during this interval. Assume that the shaft-tor
determine the current drawn from a 3 phase 220 V line by a 3 phase 15kW motor operating at half load, 85% efficiency and .8 pf lagging. Find the values of real and reactive power drawn from the lin
An amplifier with a power gain of 3dB is to be characterized. The test apparatus provides a SNR of 20dB at the input and measures a SNR of 15dB at the output. Find the amplifier's NF. Specifications
A three phase load draws 100kW at a poer factor of 0.7 laggaing from a 220V line to line. In parallel with this load is a three phase capacitor bank which draws 60kVAR. Find the total line current