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The following represent solutions of the transmission line differential equations for some arbitrary function f(u):
V(z,t) = 60 cos(1000t -5z) - 120 pi f (2t + z/100+12) V
I(z,t) = 2 pi f (2t +z/100 +12) - cos (1000 t -5z) A
a) what is the forward propagating voltage waveform?
b) what is the beckward propagating curent waveform?
c) what is the characteristic impedence of this line?
d) what is thw velocity of propagation for a signal on this line?
e) what is the total voltage at t=0 at the input end of the line (z=0)
Determine the output voltage for an op-amp comparator circuit with a non-inverting input reference voltage of + 2 VDC and an inverting input signal of - 1 VDC. The op amp reaches output saturation voltages of ±13 V at the limits.
State Carson's rule for bandwidth estimation. What does it reduce to for NBFM and WBFM and d erive an time domain expressionfor the output xd(t) of the system
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in step index fiber the core of diameter D has a refractive n1, which is typically equal to 1.48. core is typically surrounded by the cladding of slightly lower index. Where n2=n1(1-delta). The parameter is simply called the index difference.
The load of an industrial plant is 400 kVA at a power factor of 75 percent lagging. An additional motor load of 100 kW is needed. Find the new kilovoltampere load and power factor of the plant load if the motor to be added
A transformer on no load takes 4.5 A at a power factor of 0.25 lagging when connected to a 120V, 60Hz supply, the number of turns of the primary winding is 250. Calculate the magnetizing current, core losses and the maximum value of flux in the co..
A microscope has a 2.70-cm focal length eyepiece and a 0.630-cm objective lens. For a relaxed normal eye (assume a viewing distance of 25.0 cm), calculate the position of the object if the distance between the lenses is 13.5 cm
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.
What are the exact form of the equations for the 2nd-order step response for the underdamped, critically-damped, and overdamped conditions.
Let x(t) be a signal with x(t)=0 for t
A 60-Hz, single-phase transmission line has a length of 80 miles. Its shunt conductance (G) is 3.4×10?11 S/mile, resistance (R) is 0.1 ?/mile, capacitance (C) is 16 pF/mile, and inductance (L) is 0.56 mH/mile 220 kV, 220 MVA with power factor
It is required to use a peak rectifier to design a dc power supply that provides an average dc output voltage of 15 V on which a maximum of 1-V ripple is allowed. The rectifier feeds a load of 150 ohm.
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