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What is the approximate value of the voltage gain of an emitter follower? Why may such a circuit be useful?What are the values of input and output impedances of theemitter follower you expect to measure? Are they related?
In use its arms are stretched to three times their original length before release. Assume the the modulus of rubber is 10-3 GPa and that it does not change when the rubber is stretched. How much energy is stored in the catapult just before release
Typically a speech signal that can be understood over a telephone shows frequencies from 100 to 5 Khz. What would be the sampling frequency fs(sample/sec) what would be used to sample speech without aliasing.
The densities of diamond and germanium are 3.52g/cm3 and 5.32g/cm3 respectively. Estimate the number of atoms per unit volume, nearest neighbor distance, and lattice constant for diamond and Ge.
a) How many ADC bits are required b) What is the maximum allowable noise at the amplifier output c) Design the analog amplifier/filter. A temperature transducer has the relationship: R= 200 + 10T where R is the O and T is in C(Celcius).
An n-channel JFET needs a NEGATIVE voltage applied to its GATE, relative to its SOURCE. If you have a single POSITIVE supply applied to the MASTER loop of a JFET, the mid point of the voltage divider will also be a positive voltage
The photoelectric threshold wavelength for Tungsten is 2300 Å. Find the energy in eV of the emitted electrons from the surface by ultraviolet light of wavelength 1800 Å.
The amplifier is connected to the handset antenna which has an impedance of 35 + j10 at one unspecified operating frequency. Find the inductive reactance and capacitive reactance needed to match the transmitter output to the antenna
Sketching the Dependence of l versus h on Cartesian Axes, The distance l from a point at a height h above the Earth's surface to the horizon can be approximated using Pythagoras theorem by the expression:
A material with a bulk resistivity of p = 120 Om is to be used to manufacture a 75 kO resistor that must dissipate P = 80 W of power. The maximum allowable current density for this material is J = 120 A/m2.
Consider a path with discrete points A,B,C,D and E. It takes 2 pJto move an electron from A to B or from B to C. It takes 3 pJto move a proton from C to D. It takes no energy to move an electron from D to E.
What closed-loop gain would you expect. If a dc voltage of +1.00 V is applied at the input, what output result. If the 10-k ohm resistors are said to be "1% resistors," having values somewhere in the range (1 ± 0.01) times the nominal value
Need for radical future plans to alleviate the very real problem we are faced with in New Zealand and address this problem, by providing an answer to Transpower
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