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Most dc voltmeters produce a reading equal to the average value of the voltage measured. The mathematical definition of the average value of a periodic waveform is
Vavg = 1/T ∫0T v(t)dt
in which T is the period of the voltage v(t) applied to the meter.
a. What does a dc voltmeter read if the applied voltage is v(t) = Vm sin(ωt)?
b. What does the meter read if the applied voltage is a half-wave rectified version of the sine wave?
c. What does the meter read if the applied voltage is a full-wave rectified version of the sine wave?
Digital Communication Techniques. A D/A converter has a 12-bit binary input. The output analog voltage range is 0 to 5 V. How many discrete output voltage increments are there and what is the smallest voltage increment
frequency 6GHz propagating in vacuum is comprised of two components which are in spatial and temporal quadrature. The phasor expression of the wave electric field is given to be. obtain the phasor expression for the wave magnetic field.
the input signal vit is a step function which equals zero for t lt0 and equals 3.0 volts for t gt 0. determine the
A "Mealy" synchronous sequential circuit has one input X and one output Z. An output Z = 1 occurs every time the total number of 1's received is "divisible by 3" AND the total number of 0's received is an even number greater than zero.
1. Articulate the recent developments in e-business industry and its likely future directions. 2. Compare and explain various types of e-business infrastructure technologies, business models, and payment and security systems in a corporate setting.
A temparature sensitive transducer is subjected to a sudden temparature change. it taken 10 seconds for the transducer to reach equilibrium condition ( five time constants ). the time taken by the transducer to read half of the temparature difference..
First draw the transmit con-stellation and the receive constellation with ideal phase tracking and sampling. Note:they are obviously the same constellations. Now, assume that receiver synchronization is off by a phase angle.
What is the (approximate) maximum electric field intensity for which constant mobility may be assumed for electrons in silicon. In a digital circuit with a supply voltage of 1V, what is the corresponding gate length for MOS transistors.
False positive and false negative rates can be adjusted, and they are often complementary: Lowering one raises the other. List two situations in which false negatives are significantly more serious than false positives.
A twelve pole, 480V, 60Hz synchronous motor has a reactance of 5 ohm. The field current is adjusted so that the equivalent field voltage Ef is 520V (line-to-line). Calculate the following: (a) Maximum torque. (b) Power factor at the maximum torque..
A spaceship moves at a speed of 0.85 c away from theEarth. It shoots a star wars torpedo toward the Earth at aspeed of 0.80 c relative to the ship. What is the velocity of the torpedo relative to the Earth
In a particular technology, a small BJT operating at vBE = 28VT conducts a collector current of 100µA. What is the corresponding saturation current. For a transistor in the same technology but with an emitter junction that is 32 times larger
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