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1. What is the net charge of a copper atom if it gains two electrons?
2. What is the net charge of a silicon atom if it gains three valence electrons?
3. A designer will be using a silicon diode over a temperature range of 0° to 75°C. What are the minimum and maximum values of barrier potential?
which option will require the smallest transmit power?
Estimate the minimum dc input voltage to the switch-mode converter required to supply the motor in Problem 15-1 if the maximum speed is 5000 rpm and the torque is 0.25 N-m.
1a) find the equation of an electromagnetic wave, which has a period of 10^-4 sec, amplitude of 15 units and a positive maximum of 2.5*10^-5 secs 1b) if a uniform electric field, E = 20 a(subscript)y V/m is made to work along a circular path.
The system receives three binary streams: A, B, and C. The system takes a look during each clock cycle at the last four bits of each stream (a(t), a(t-1), a(t-2), a(t-3)), (b(t), b(t-1), b(t-2), b(t-3)) and (c(t), c(t-1), c(t-2), c(t-3)).
A circular loop of wire can be used as a radio antenna. If an antenna with a diameter of 18.5cm is located a distance of 2.40km away from a from a source with a total power of 57.0kW at a frequency of 100MHz
A balanced, three-phase Y-connected source with 230-Vrms line voltages has a balanced Y-connected load of 3+j4 Ω per phase. For the case that the lines have zero impedance, find all three line currents and the total real power absorbed by the load..
A combined-cycle, natural-gas, power plant has an efficiency of 52%. Natural gas has an energy density of 55,340 kJ/kg and about 77% of the fuel is carbon. a. What is the heat rate of this plant expressed as kJ/kWh and Btu/kWh
Determine the transfer function of a second order Butterworth Lowpass filter with a 3dB cutoff of 5 Kilo Hertz. Design a circuit which realizes this filter using Sallen-Key configuration. Find all the values of the circuit elements and determine t..
An initially charged capacitance discharges through a resistance. At one time constant, what percentage of the initial voltage reamins What percentage of the initial stored energy remains
A motor and position controller has an output position x(t) and an input voltage v(t). The transfer function for the system is X/V = [64(s+4)]/[s^2 +4s+8] (a) Determine x(t) for a unit step input voltage such that v(t) = 1u(t).
The minimum closed-loop bandwidth of a feedback amplifier is to be 20 kHz. The open-loop low-frequency voltage gain is Av = 105 and the open-loop 3 dB frequency is fH = 8 Hz. What is the maximum closed-loop voltage gain?
A transmission line constructed from perfect conductors and airdielectric is to have a maximum dimension of 8mm for its crosssection. The line is to be used at high frequencies. Specify the dimensions if it: (a) a two-wire line with Zo = 300 Ω
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