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design a Zener regulator with an output voltage of 7.5 v. the supply voltage can vary between 10 v and 25 v and the load current between 10 mA and 60mA.
A glass tube with a cross-sectional area of 9^-2 m^2 contains an ionizd gas. The densities are 10^15 positive ions/m^ and 10^11 free electrons/m^3. Under the influence of an applied voltage, the postive ions are moving.
You have to figure out which one using cross or auto correlation.
If an ice cream cone is 6 inches tall and its rim has a diameter of 2 inches, determine the weight of ice cream that can fit in the cone assuming the ice cream above the cone is a perfect hemisphere.
A 1000 turns wire are tighly wound on a toroid with a rectangular cross section, the heigh of toroid is 0.5 cm . The inner and outer radii of 2 cm and 3cm respectively. The current in the wire I=100 mA, Ur = 4000. N= 1000, Find H,B,phi and inducta..
A power amplifier has a gain of 20 dB and an input level of 2 volts. Assuming that the input and output impedances are the same, what is the voltage level at the amplifier output
A MEMS device has a pin that is to be drilled through the center. A camera is used to position a laser beam for this purpose. The center of the beam is to be retrieved using a threshold in gfilter on an intensity map.
A constant current, I, is applied to charge a parallel plate capacitor of area A and separation between plates, d. What is the E field strength inside the capacitor as a function of time What is the displacement 'current' density between the plates, ..
In a CDMA system the chip duration is 0.26us and maximum excessdelay 1.3us, into how many delay bins do the multipath components fall if the maximum excess delay is 100ns is the CDMA system narrowband or wideband
a certain radio frequency generator delivers a power level of 12 dBm. If this signal is amplified, calculate how many decibels of gain is required to produce a power of 20 dBm.
The cutoff frequencies of a series resonant circuit are 5400 Hz and 6000 Hz. a. Find the bandwidth of the circuit. b. If Qs is 9.5, find the resonant frequency of the circuit.
a positive test charge is used to explore the field of asingle positive point charge Q at P(a,b,c). if the test charge isplaced at the origin, the force on it is in the direction0.5ax-0.5sqr(3ay), and when the test charge is moved to (1,0,0)
A positive point charge of magnitude q1 lies at the origin. Derive an expression for the incremental work done in moving a second charge q2 through a distance dx from the starting position (x,y,z) in the direction of -ax.
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