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Design a 7.5 V zener regulator using a 7.5 V zener diode specified at 11mA. The zener has rz= 20 ohms and a knee current of 0.5 mA . Design the appropriate value of the resistance r and calculate the output voltage variation when the supply voltage varies by ±10%
Convert the designed prototype filter to highpass filter with cutoff frequency f_C=10,000 Hz, with 30 db attenuation at f_S=1000 Hz. Determine the transfer function of the filter.
An amplifier has an input signal, VIn = 250 V. The output voltage, VOut = 30 mV. What is the gain in dB for the amplifier at that frequency
A potentiometer is wired is wired to represent a rotational range of 0-180 degree. The potentiometer is supplied with a voltage of 15 VDC. What is the output voltage at 75 degree
Given a DSP system in which a sampling rate of 8000 Hertz is used and the antialiasing filter is a second order Butterworth low pass filter with a cutoff frequency of 3.2 KHz determine a. The percentage of aliasing level at cutoff frequency
Two strands of infinitely long current rights carry currents of equal magnitude. Find the magnetic field produced by the two filaments at the midpoint between the two strands. Compare this result if the currents: a) have the same direction
The amount of sunshine on a horizontal surface at the equator is 5kWh/m2/day. Suppose a house is to run entirely off grid on solar electricity alone using a high performance silicon photovoltaic module with specifications shown below: Maximum powe..
Design a full-wave bridge rectifier to deliver 12DC with less than 0.1V ripples into a load drawing 100mA. Specify any components as well as the input AC voltage required. Assume 0.6V diode drops.
A pn junction diode is reverse-biased when 5V of an external voltage is applied to the p-side of the diode while the n-side is grounded If two pn junction diode are connected in series pointing each other, at least 1.4 V must be applied to turn bo..
An additional motor load of 100 kW is needed. Find the new kilovoltampere load and power factor of the plant load if the motor to be added is (a) an induction motor with a power factor of 90 percent lagging, and (b) an 80 percent leading power fac..
With an unknown focal length lens, they are able to capture a zoomed in image of an iris (1 cm in diameter) which is 200 pixels wide in the final image. Their current image sensor is 640x480 resolution (old technology). The pixel size is 20 micron..
1-State the Difference between capacitance and inductance 2- List four types of electrical source with brief description 3-What are the differences between Thevenin's equivalent circuit and Norton's equivalent circuit 4- Assume that a sinusoidal volt..
a)Write the diffrenece equation for a four-term moving average filter. b) The input x[n] = cos(n pi/6)u[n] is passed through the four-term moving average filter. Solve for the first 5 samples of the output.
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