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Describe the steps necessary to output 8-bit data to a set of LEDs.
A perfect conductor with bias voltage Vo is insulated with a wedge shaped dielectric material of angle, =450, whose relative permittivity is εr. Use electrostatic boundary conditions to determine the electric displacement, D
A generator (which may be represented by an emf in series with an inductive reactance) is rated 500MVA, 22kV. Its Y-connected windings have a reactance of 1.1 p.u. Find the ohmic value of the reactance of the windings.
Assume that the cruise control system of an automobile analyzes the speed and the acceleration of the vehicle to operate. To transmit this information to the cruise control unit, an analog computer unit is required.
An instrumentation amplifier with 2 buffers has a feedback resistor of 52K. The 2 resistors from the buffer's output to the input of the last stage Op-Amp are 1 K resistors. Voltage level to the non-inverting buffer inputs are V1 =.06 volt and v2 ..
There are 15 randomly selected Multiple Choice questions
A rectangular core has fixed permeability μr >> 1, a square cross section of dimension a x a, and has centerline dimensions around its perimeter of b and d. Coils 1 and 2, having turn numbers N1 and N2, are wound on the core.
An early code used in radio transmission involved using codewords that consist of binary bits and contain the same number of 1s. Thus, the 2-out-of-5 code only transmits blocks of 5 bits in which 2 bits are 1 and the others 0.
Calculate the parameters RE and XE, and the maximum efficiency and power output for the transformer when a load with a 90% lagging power factor is connected to the transformer secondary winding.
An OFDM system with a passband bandwidth of 10 MHz and carrier frequency of 1 GHz is used in an outdoor environment with a maximum delay spread of 15 microseconds.
In a series RC circuit, R = 5 Ohms and C = 0.1F. The capacitor voltage is 10 volts at t=0. At t=0, a voltage of 4V is applied. a) Determine the total capacitance voltage and capacitance current as a function time after the external voltage is applied..
A 60 hp, 3-phase motor absorbs 50 kW from a 600 V, 3-phase line. If the line current is 60 A, calculate the following: (a) The efficiency of the motor (b) The apparent power absorbed by the motor (c) The reactive power absorbed by the motor
Typically, a speech signal that can be understood over a telephone shows frequencies from about 100 Hz to about 5 KHz. What would the sampling frequency fs (samples/ sec) that would be used to sample a speech without aliasing
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