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Audio amplifiers use transformer coupling between the final amplifier stage and a speaker to match impedances and in order to avoid having the DC current of the final stage flow through the speaker coil. We wish to connect an 8 Ω speaker to an 8000 Ω amplifier. Calculate the turn ratio of the output transformer.
The network of given figure is the basic biasing arrangement for the field-effect transistor - Determine the voltages VG and VS. -and Find the currents I1, I2, ID, and IS.
A permanent magnet generator has Kt = 0:02Nm/A . The terminal voltage is six volts. It is spinning at 2500 rpm. It is connected to a load with a resistance of 30W. Determine the counter torque and the power input.
A single phase transformer having short circuit test values are at 50hz given like 20volt ,40amp ,085 p.f When the test is done at 25hz the what are the values Any body.
A nnpn transistor has an emitter area of 10mm x10mm. The dopingconcentrations are as follows: in the emitterNd=1019 cm3, in the baseNa=1017 cm3, and the collectorNd=1015 cm3. The transistoris operating at T=300K.
Show by means of a drawing what happens if the charge is moved from the center plane toward the upper plane so that it is at a distance b from the upper plane and a distance c from the lower plane while the radial distance is maintained (point B).
A1. An amplifier has cutoff frequencies of 120.0 Hz and 1.200 kHz. Calculate the bandwidth and center frequency of the amplifier. A2. The upper cutoff frequency of an amplifier is 8.000 MHz and its center frequency is 1 MHz.
For full credit, show all equations, derivations, sketches plotted data in a neat and well-organized format. This cannot be over-emphasized. Place a square around your final answer. 1. Two unlabeled boxes contain KCl and CsCl for analysis using XRD..
Compute the first 10 samples of the step response for the nonrecursive difference equation: y(n) = x(n) -0.5x[n-1]-0.7x[n-2] Indentify which of the following filters are recursive and which are nonrecursive.
If the diode carries a forward current of 100 mA at room temperature, calculate the reverse saturation current and the forward current if the temperature is raised by 50°C.
A man has set up a Christmas display using 20 strands of lights (500 Watts/strand). If the man wants to wire the strand outlets to the house panel with a 30 amp breaker, Determine a) The number of 30 amp parallel circuits Cratchit will have to wire..
Design a CMOS Differential pair amplifier with a low frequency gain of at least 30dB, while driving a resistive load 50-ohm. The available circuit components are NMOS transistor, PMOS transistor, resistors, capacitors and inductors.
Show the summary of the calculation in the temperature system in the error probability density function of a system of non-ideal elements.
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