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A simple relay has an air gap of length 1.0mm and effective cross-sectional area of 1000mm2. The magnetising coilconsists of 1000 turns of wire carrying current of 200mA. Calculate the energy stored in the air gap. The reluctance of the ferromagnetic part of the magnetic circuit may be neglected.
CdS photodetector is irradiated by light with wave-length of 450nm and intensity of 30Wm^-2. If the band gap of CdS is 2.4 eV and all electron-hole pairs are extracted without recombination. What is current density of this photodetector
what are the application of backward diode
An overhead line with an inductance of 1.33 mH/km and capacitance of 8.34 nF/km is connected to an underground cable with an inductance of 0.266 mH/km and capacitance of 166 nF/km.
Calculate: a) the total charge in the device at t = 3 s, assume q(0) = 0 (round to three decimal places) b) the power consumed by the device at t = 1 s (round to three decimal places)
A penstock is used to bring water from behind a dam into a turbine. the effective head is 20 m and the flow rate of water is 50m^3/s. Compute the power of the water exiting the penstock.
You are required to determine that this next generation transmission system will require a spectral efficiency of 5 bits/sec per Hertz.
It is desired to know the design impedence referred to the primary and to the secondary for basic engineering calculations and analysis a. solve for the transformer impedance referred to the primary b. solve for the tranformer impedance referred to ..
A system is required that represents 0 to 100 volts in a 10 bit code. What is the voltage increment that is represented by the LSB of this code.
Desing a logic circuit that implements a serial adder/subtracter with accumulator for a 6-bit binary number. you should use one of the imputs to select between the adder and the subtracter. Asumme that negative numbers are represented by 2's compl..
Three identical amps having Avoc = 25, Ri = 2kΩ and Ro = 3kΩ are cascaded. Determine theinput resistance, the open-circuit voltage gain, and the outputresistance of the cascade.
In a satellite receiver operating at 12.0 GHz there is need for a reactive impedance having reactance of X = - 67 Ohm. Using an open circuit stub formed from 50 Ohm lossless transmission line having a phase velocity of 1 x 10^8 m/s
A control System with feedback has the following characteristic equation: s3 + (1 + K)s2 + 10s + (5 + 15K) = 0 The parameter K must be positive. When K is equal a single loop of wire with an enclosed area of 0.0900 m^2 is in a region of uniforfm mag..
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