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An amplifier operating from a single 15-V supply provides a 12-V peak-to-peak sine-wave signal to a I-ill load and draws negligible input current from the signal source. The de current drawn from the 15-v supply is 8mA. What is the power dissapated in the amplifier, what is the amplifier effeciency?
Computer security is not an issue for organizations alone. Anyone whose personal computer is connected to a network or the Internet faces a potential risk of attack. Identify all the potential security threats on a personal computer.
For a face centered cubic, the volume of a conventional unit cell is a^3 Find the volume of a fcc primitive unit cell with three basis vectors: (0,0,0 --> a/2,0,a/2) and (0,0,0 --> a/2,a/2,0), and (0,0,0 --> 0,a/2,a/2)
A random variable X is normally distributed with mean u = 10 and standard deviation sigma = 1.5. Find the following probabilities: A. P(8 or equal 8.5).
a)What is the voltage across a 220? resistor if the current through it is 5.6 mA b)What is the current through a 6.8? resistor if the voltage drop across it is 24 V c) What is the power delivered by a 6 V battery if the current drain is 750mA
Assume an aircraft carrier will be sunk with a probability of .3 if hit by a torpedo. At least how many torpedoes are required to hit the carrier so that it is sunk with a probability of .9
A single-phase source is connected to an electric load. The load draws a 0.6 oer-unit current at 1.10 per-unit voltage while taking real power of 0.5 per-unit at a lagging power factor. Choose a base voltage of 12.47KV and a current of 100A.
An incandescent light bulb can be modeled as a resistor with a value of a few ohms. Imagine an incandescent light bulb goes out in your house. Using your trusty multimeter, how would you check if the bulb is bad and needs replacing
What kind of wireless networking alternative makes the most sense when considering network links that span an appreciable portion of the globe?
To meet the signal-to-noise ratio of the receiver, the received power must be at least 10 µ W. Assuming the two antennas are aligned for maximum reception to each other, including being polarization matched, what should the gain (in dB) of the tra..
Consider two discrete sequences: x = [7.7, 5.2, 2.2] y = [1.0, 9.3, 3.1] Let z be the convolution of x and y. What is the 4th non-zero value of z (from the left)
A 240kW 500 Volt 1750rpm separately excited dc generator has an overall efficiency of 94%. The shunt field resistance is 60ohms, and the rated current is 5amps. The I^2R loss in the armature is 0.023pu.
Calculate the %age second harmonic distortion present in the amplifier's output for a sinusoidal input of 10 mV r.m.s.
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