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A 10 MHz crystal has a negative temperature coefficient of 4.1Hz/MHz/Co. Determine the crystal frequency if the temperature decreasesby 41 degrees.
The surface concentration is fixed at N0=1.8e20/cm^2 when diffusing boron into a uniformly doped n-type substrate. The atomic diffusion constant for boron in Si at the temperature of 950 C is 3.0e-15 cm^2/s.
What value of emitter resistor would you choose, if: a) You have to amplify the signal of a microphone that has an internal resistance of 100K using a Common Emitter bias configuration b) you have to drive a load of 50 with an Emitter Follower cir..
Draw a circuit that shifts cyclically a register to left or toright ans is also able to preserve this register's state. Given aretwo controls C1 and C2 that select any of these three operations.use only NOT, AND and OR gates and D type flip flop.
Maximum value of frequency deviation is fixed at 75 kHz for commercial broadcasting by radio. Modulation frequency W = 15 kHz, then find the transmission bandwidth of signal and deviation ratio.
Plot accurately the gain and phase as functions of w with a matlab program you write. Attach plots and your own program. Note: Bode plots or any plots with logarithmic scale of either axis are NOT acceptable.
Multiple charges at different locations are said to be in equilibrium if the force acting on any one of them is identical in magnitude and direction to the force acting on any of the others. Suppose we have two negative charges
Thickness is to be reduced in three steps in a hot rolling operation. Each step will reduce the slab to 75% of its previous thickness. It is expected that for this metal and reduction, the slab will widen by 3% in each step.
If a particular radar reciever can detect the target using HH polarization at a maximum distance of 10km, find the maximum distance at which the target can be detected using VV polarization. Assume a standard radar equation.
The antenna used as the transmitter has a gain of 16.6 dB and the receiving antenna has an effective area of 16.6 m2. We measure the average conductivity of the ground as s = (1.2)10-4 S/m. (a) What is the free-space wavelength at the operating fre..
Consider an 8-user CDMA system. The data vector of all users is given by [1,1,1,1,-1,-1,-1,1]. Find the total transmit signal.
Consider a zero-phase sine function, x(t), with frequency ?=1.3rad/sec. What is the minimum positive time shift needed to turn this function into a zero-phase cosine of the same frequency
when the line was open-circuited, the measurement yielded an input impedance equivalent to a capacitor with capacitance of 40 pF. Find Zo of line, the phase velocity, and the relative permittivity of the insulating material.
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