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A half-wave rectifier circuit with a 1-Kwload operates from a 12-v(rms) 60-Hz household a 5-to 1 transformer having a center-tappedsecondary winding. It use two silicon diodes that can be modeled tohave a 0.7-v drop for all currents. For what fraction of acycle does each diode conduct, and what is the average output voltage?
When the scope probe is properly calibrated, it can be modeled as a 9[M Ohm] resistor in parallel with a capacitor having a capacitance l/9th that of the oscilloscope input capacitance.
The isotope's half-life is 5 days. The average energy of the beta particles is 0.35 MeV with an RBE of 1.5. Ninety percent of the beta particles are absorbed within the patient's body and 10% escape. What total dose (in mSv) does the patient recei..
Select an appropriate QAM signal constellation, carrier frequency, and the roll-off factor of a pulse with a raised cosine spectrum that utilizes the entire frequency band. Sketch the system block diagram and the spectrum of the transmitted signal..
Find the magnitude of the electric field at all points in space both inside and outside the slab, in terms of x, the distance measured from the central plane of the slab. What is the field for x = 1.00 cm What is the field for x = 8.00 cm
If a given modulation method A requires higher Eb/No ratio for a given probability of error compared with another modulation method B, is method B better than method A or not, and why
How a transformer works and apply those rules to a transformer where the primary core cross-sectional area is twice.
(a) Find the locus of the closed-loop roots (poles) with respect to K; (b) Is there a value of K that will cause all roots to have a damping ratio greater than 0.5 (c) Find the values of K that yield closed-loop poles with the damping ratio
In a typical mobile communications base station (or cell site), a radio frequency (RF) signal is amplified in the base station and then sent (over cable) to the antennas at the top of the tower.
0.143-henry inductor is connected in series with a variable capacitor to a 208-volt 400-cycle source. For what value of capacitance will the current be a) 1.04 A leading b) 1.04 A lagging
In a balanced three-phase system, the abc phase sequence source is wye connected and Van=120
Within a region of free space, charge density is given as ρv=ρorcosθ/a c/m3, where ρo and a are constants. Find the total charge lying within (a) the sphere, r
The feedback capacitance of an inverting amplifier is 10pF. What is the Miller capacitance at the input if the gain of the amplifier is -120 What is the Miller capacitance at the output of the amplifier
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