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inductor L and assume they have been connected for Consider a circuit consisting of a sinusoidal source V s (t) = cos (t) u (t) volts connected in series to a resistor R and an a very long time.
Let R = 1Ohm and L = 0 H. Compute the instantaneous and the average powers delivered to the resistor.Hint: In the above parts problem use phasors or the trigonometric formula
cos(a) cos(ß)=0.5[cos(a- ß)+cos(a+ ß)]
Sketch the Bode plot (closed-loop gain vs. frequency, and closed-loop phase vs. frequency) of the amplifier. Label the gains at 0.1*f3dB, f3dB, and 10*f3dB using dB-scale. Also indicate the values of the phases at these frequencies.
A differential equation of a system with x(t) as an input and y(t) as an output is defined as a.)Find the system response to unit step function, x(t)= u(t), where b.) Specify the Zero Input Response.
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 line.
Compute the complex power S (in polar form) drawn by a certain load if it is known that (a) it draws 100 Waverage power at a lagging PF of 0.75; (b) it draws a current I = 9 + j5 A rms when connected to the voltage 120/32 V rms
3)What factors started the decline in the nuclear power industry, and what events essentially ended new construction of nuclear power plant 4)What are three advantages of using AC power over using DC power
For a face centered cubic, the volume of a conventional unit cell is a^3 Find the volume of a fcc primitive unit cell with three basis vectors: (0,0,0 --> a/2,0,a/2) and (0,0,0 --> a/2,a/2,0), and (0,0,0 --> 0,a/2,a/2)
Determine what kind of filter (low pass, high pass, bandpass, or band stop) the circuit represents. Briefly justify your answer. Confirm by computing the Bode plot using MATLAB and paste the graph below.
For the system described by the following equations, with the input x(t) and output y(t), determine which are invertible systems and which are noninvertible. For the invertible systems, find the input-output relationships of the inverse system.
A portable electric garden tool uses a 11 volt rechargeable battery pack with a rated capacity of 2.1 amp-hours. If the tool is used with a continuous power output of 0.2 horsepower, what is the expected battery life
Three single phase transformers are used to form a three-phase transformer bank rated 13.8kV (delta)/120kV (wye). One side of the transformer bank is connected to a 120kV transmission line.
A pn junction for which the breakdown voltage is 10 V has a maximum safe power dissipation of 0.5 W. a) What continuous current in the breakdown region will raise the dissipation to half the rated value
A wafer 100mm in diameter is mounted in an electron-beam evaporation system in which the spherical radius is 40cm. Use Eq. 6.7 to estimate the worst-case varation in film thickness between the center and edges
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