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(a) Consider a cylindrical conductor with radius a suspended inparallel over a conducting ground plane by a distance d in a medium with permittivity and conductivity. Calculate the capacitance per unit length between the two. You may assume that the distance dis much greater than the wire radius a. (d » a)(b) Consider two parallel cylindrical conductors with radius aseparated by distance 2d. Calculate the capacitance per unit lengthbetween the two. You may assume that the distance d is much greaterthan the wire radius a. (d » a)
Design a BJT mixer with conversion gain of 10dB for an IF load of 1 kohm and a LO amplitude of 10 mV. The RF frequency should be 707 KHz and the IF frequency should be 455 KHz. Hint: calculate the bias components for a VCC of 9 V
A p-n junction solar cell has Voc = .5 V and Jsc = 20 mA/cm2. A second cell of same area has Voc = .6V and Jsc = 16 mA/cm2. Assuming both cells obey ideal diode equation find the values of Voc and Jsc when connected in parallel and series
Data at a rate of 2 Mbps is to be transmitted via a pass-band communication system whose carrier frequency is 500MHz. A binary antipodal system with roll-off factor of 0.2 is used for this communication.
A 12.5 nF capacitor is fully charged by a 12 V source. a) What is the charge on the capacitor b) What is the energy stored in the capacitor. Now the charged capacitor is disconnected from the source and a dielectric, porcelain, is placted between the..
A 50HP single phase motor operates from a 480V, 60HZ supply. When delivering full rated power the motor efficiency is 89% and the power factor is 0.78 lagging. Determine the full load current.(Hint: 746W=1HP)
Suppose we have a causal LTI system with rational system function H(s). We don't know H(s), but we do have the following information: i. When the input to the system is x(t) = u(t), the output y(t) is absolutely integrable.
A semiconductor has Nc=10^19 cm^-3, Nv=5x10^18 cm^-3 and Eg=2eV. If it is doped with 2x10^17 acceptors (fully ionized), calculate the electron, hole and intrinsic carrier concentrations at 627 C. Sketch the simplified band diagram, showing the pos..
The memory unit, 2M x 32, is specified by the number of words times the number of bits per word. How many address lines and input-output data lines are needed And give the number of bytes stored in the memory.
"Divide by 3 clock with 50% duty cycle" is the most commonly asked ASIC design question. This solution gives a simple design in which only 1 counter is required which works only on positive edge of the clock.
Assuming DS = 1200H, BX = 0100H, and SI = 0250H, determine the address accessed by each of the following instructions. Assume real mode operation. (a) MOV [100H], DL (b) MOV [SI+100H], EAX
Sam (75 ) takes off up a 50--high, 10 frictionless slope on his jet-powered skis. The skis have a thrust of 200 . He keeps his skis tilted at 10 after becoming airborne. How far does Sam land from the base of the cliff
A 20 vrms, 60 hz ac source is in series with an ideal diode and a 100 ohm resistance. Determine the peak current and peak inverse voltage (PIV) for the diode
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