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The equivalent circuit of a transducer that measures the speed of a motor is a current source in parallel with an output resistance. The current source produces an output of 1 μA per revolution per second of the motor and the output resistance is 50 k Ω.
Design a discrete transistor circuit that produces a full-scale output of 5 V for a maximum motor speed of 60 revolutions per second.
The nominal transistor current gain is hFE = 100 with tolerances of ±20 percent. The accuracy of the output signal is to remain within ±1 percent.
Calculate the electric field intensity and potential between and outside the plates.
The heater element of an electric kettle has a constant resistance of 100 Ω ohm and the applied voltage is 250 V. Calculate the time taken to raise the temperature of one litre of water from 15°C to 90°C assuming that 85% of the power input
A 3 phase, 60 Hz, 4 pole, 440-v (line-line, rms) induction motor drive has a full-load (rated) speed of 1746 rpm. The rated torque is 40Nm. Keeping the air gap flux-density peak constant at its rated value
Plot the impedance of the network versus frequency from 0 to 10 kHz. - Plot the current i versus frequency for the frequency range zero to 10 kHz.
Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 26 m/s and v2i = 11 m/s. It is found that after the collision one of the pucks is moving along x with a sp..
What are the incremental savings that result from increasing the efficiency of a PV collector by 1% in terms of collector area and costs? Assume that the PV module represents about 50% of the total PV system cost.
In the above problem, Q1= 1.22·10-6 C, Q2= -3.03·10-6 C, and Q3= 3.33·10-6 C. Calculate the total force on Q2. Give with the plus sign for a force directed to the right.
Three two-input "AND" gates have their outputs connected to an "OR" gate. The first "AND" gate has each of its inputs at logic HIGH level. The second "AND" gate has each of it's inputs at logic LOW level.
about 10000 btus of heat input are required for an electric utility to produce 1 kilowatt-hour of electrical energy.
Assuming the configuration of part (a), find the required input signal power to give an output SNR of 40 dB. Perform the same calculation for the system of part (b).
discuss the difference(s) and similarity(ies) between the modulations index used in AM and the modulation index used in FM What are the practical interpretations
The four alkaline battery cells store a total of 200watt-seconds of energy. If the cassette player is drawing a constant 10mA from the battery pack, how long will the cassette operate at normal power
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