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A 75-ohms lossless transmission line is terminated in a load ZL = 80+j60. The line is length lamda/8 long and connected to a line Z0= 50-ohms. What is the input impedance on the 50-ohms line, lamda/8 from the junction?
A sample of radiocactive material undergoes decay such that the number of atoms N(t) remaining in the unstable state at time t is related to the number No at t = 0 by the relation N(t) = No exp(t\tau)
By direct integration find the Laplace transforms and the region of convergence of the following functions
he real power delivered by a source to two impedances, Z1=3+j4 ohm and Z2=10 ohm, connected in parallel, is 1100 W. Determine (a) the real power absorbed by each of the impedances and (b) the source current.
Calculate the minimum PWM frequency for a small permanent magnet DC motor with a time constant of 15 milliseconds.
Industry standards suggest that 10% of new vehicles require warranty service within the 1st year. Jackson Chevy in Detroit, MI, sold 12 cars yesterday. a. What is the probability that none of these cars requires warranty service
A wave in free space has a wavelength of 12 cm. This wave reaches a material in which the transmitted wave has a wavelength of 8 cm. lEl= 10V/m and lHl= 100 mA/m. Find the frequency of the wave, along with the permitivity and permeability of the m..
the length of a short-circuited stub of characteristic impedance Z (OS) =100 ohmns which, upon placement in shunt with the line at the 1 + jbn admittance point, produces impedance matching on the line so that there exists no reflected wave to the ..
transfer function: T(s)=1/(0.1s+1) with all initail conditions at 0 a) if the input is 1.5sin(2t)*u(t) find the steady state value of the output b) after the input is applied, approximately how long will it take for the steady state value you found i..
A newly planted tree is supported against the wind by a rope tied to a stake in the ground. The force of the wind, though distributed over the tree, is equivalent to a single force F. Find the tension in the rope
Construct a truth table for the following specifications: if any two consecutive switches out of four on-off switches in a row are on, then a light is on; otherwise, the light is off. Denote the switches in order as a, b, c, d,
A dc separately excited generator runs at 1200 rpm. the rated current and voltages are 100 A at 240 V. The armature resistance is 0.15 (ohms). The open circuit magnetization characteristics at 1200 rpm are
A 10kVA, 200/400V 50Hz single-phase transformer gave the following test results. O/C test: 200V, 1.3A, 120W, on l.v. side. S/C test: 22V, 30A, 200W on h.v. side. (a) Calculate the magnetizing current and the component corresponding to core loss at ..
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