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Derive equation (14.20) by treating the antenna and lossy line as a cascade of two networks whose equivalent noise temperatures are given by (14.18) and (10.15).
The operational life of magnetic disks can be modeled by a Weibull distribution. Consider the following data that represent the life of packaged magnetic disks exposed to corrosive gases (in hours): 4, 86, 335, 746, 80, 1510, 195, 562, 137 1574, 7..
The current in a circuit is 100mA. Determine what the current will be when the resistance is increased by 100%.
Find the electric flux density field produced by a uniformly charged infinite cylinder of radius ‘a' using Gauss's law.
1- Find the voltage across the inductor for t > 0 2- Sketch the voltage and the current as a function of time 3- Find the power ( in microwatts) at the terminals of the inductor when t = 200 ms
Assume that one of the pumps uses a1/4hp DC shunt motor with an input voltage of 115VDC that pulls 1.6A running at 1500 rpm. The filed resistance for the motor is 600 ohms and the armature resistance is 8.5 ohms. Find the constant KT for the motor..
A 220 V, 1500 rpm, 11.6 A (armature current) separately excited motor is controlled by a single phase, full wave SCR converter. The armature resistance of the motor is 2 ohm. The ac source voltage is 230 V (rms) 60 Hz.
(a) Determine a unit vector in the direction of Q at P(1, 2, 1) (b) Find the component of Q at P in the direction of PT where T is point (5, 3, -4) (c) Where is Q the same as the unit vector of \(a_{x}+11a_{y}+10a_{z}\)
how do you draw the standard form simulation diagram given a higher-order differential equation and how to make
Obtain the power factor of a two-branch parallel circuit whre th efirst branch has Z1 = 2 + j4 ohms and the second Z2 = 6 + j0 ohms. To what value must the 6-ohm resistor be changed to result in the overall power factor of 0.90 lagging
The photoelectric threshold wavelength for Tungsten is 2300 Å. Find the energy in eV of the emitted electrons from the surface by ultraviolet light of wavelength 1800 Å.
The folding frequency in the spectrum.
Why the circuit Current (I) decrease, when Inductance (L) or inductive reactance (XL) increases in inductive circuit?
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