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A very small discrete silicon diode (a "100 RA diode") is found to conduct 100 RA at 0.700 V and 1 mA at 0.815 V. Find the values of it and Is which correspond.
In a typical mobile communications base station (or cell site), a radio frequency (RF) signal is amplified in the base station and then sent (over cable) to the antennas at the top of the tower.
when the line was open-circuited, the measurement yielded an input impedance equivalent to a capacitor with capacitance of 40 pF. Find Zo of line, the phase velocity, and the relative permittivity of the insulating material.
A mixer stage has a noise figure of 20 dB. This mixer stage is preceded by an amplifier which has a noise figure of 9 dB and an available power gain of 15 dB. what is The overall noise figure referred to the input.
How much hydrogen would be needed to give the car a range of 300 miles if the source of electricity is an on-board fuel cell with an efficiency that is 50% of the ideal?
In this 2-bit case, bit rate = 2. baud rate. Find the data rate in bps (bits per second) for a digital system using 16 different signaling states and transmitting at 1200 baud.
find the value of x that is required for nulling the output offset voltage that results from Q1 having an area 10%larger than that of Q2.
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.
Include the signal source and load and derive an expression for the overall gain
A buck converter has an input of 6 V and an output of 1.5 V. The load resistor is 3 , the switching frequency is 400 kHz, L 5 H, and C 10 F. (a) Determine the duty ratio. (b) Determine the average, peak, and rms inductor currents.
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 junction is an n region next to an intrinsic region, which can be represented as an ntype region to a p-type lightly doped region. At T= 300K, the doping concentrations in silicon are Nd =1018 cm-3 and Na= 1013 cm-3.
A 20kg of aluminum block initially at 80C is dropped into an insulated tank that contains 120 liter of water at 25C. Determine the final equilibrium temperature and the total entropy change for this process.
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