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An amplifier has an open-circuit voltage gain of 1500, an input impedance of 3 kΩ, and an output impedance of 300 Ω. Find the voltage and power gain of the amplifier in decibels when a load impedance of 200 Ω is connected to the output of the amplifier.
Write the switching expression for the burglar alarm that produces a logic 1 (rings a bell) when the safe is moved and the control switch is closed, or when the closet is o pen after banking hours, or when the closet is opened with the control swi..
a) What current will flow in the diode if the forward voltage bias is raised to 0.8V b) What current will flow in the diode if the forward voltage bias is lowered to 0.6V c) What change in forward bias voltage will increase the diode current by a ..
When played, it produces a sound of 196 Hz. The wavelength of the wave on the guitar string is 1.28 m. A) What is the tension in the string B) If a speaker is using 25 W of power to produce the sound, what is the intensity level measured at a dist..
Find the values of β and M required to satisfy this specification
an electrical conductor designed to carry large currents has a circular cross section 2.50 mm in diameter and is 14.0 m
Determine: (a) the resistance of the coil,(b) the current flowing in the circuit one second after the shorting link has been placed in the circuit, and (c) the time taken for the current to fall to 10% of its initial value.
A perfect inductor with L = 0.2 H is connected in series to a voltage source with: v(t) = 10cos(40pi(t) 20degrees). What is the reactance of the inductor
Focus on a single cell first and assume a background noise power of N0. Is the system interference-limited under the SIC receiver? Was it interference-limited under the conventional CDMA receiver?
a- for this modulator a 1-v signal produces a deviation of 20Khz determine the amplitude and phase spectra of s(t) for the modulating signal m(t) = 1.5 cos(2*pi*6*10^4*t) when fc>>fm b- find the bandwidth of the modulated signal using carson's rule..
If the telephone instrument has a resistance of 200 ohms when off hook and represents an open circuit when on hook calculate the combined resistance of the local loop and the power source at the central office.
A short length of a W8 X 31 rolled-steel shape supports a rigid plate on which two loads P and Q are applied as shown. The strains at two points A and B on the centerline of the outer faces of the flanges have been measured and found to be Knowing..
We have a load with an impedance given by Z=30+j40 ohms. The voltage across this load is V =1500sqrt(2)
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