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Voltage-doubler circuit. Consider the circuit of Figure. The capacitors are very large, so they discharge only a very small amount per cycle. (Thus, no ac voltage map pears across the capacitors, and the ac input plus the dc voltage of C1 must appear at point A.) Sketch the voltage at point A versus time. Find the voltage across the load. Why is this called a voltage double? What is the peak inverse voltage across each diode?
A sample of HCL gas is placed in an electric field of 2-5 x 104 N/C. The dipole moment of each HCL molecule is 3.4 x 10-30 C-m. Find the maximum torque that can act on a molecule.
The system uses a 7-cell reuse pattern. If the offered traffic per user is 0.03 Erlangs and the average number of calls per hour per user is 1.5, for an Erlang-C system with a probability of delaying a call being 5%, calculate the traffic load per..
Each start/stop station contains one NO start pushbutton and one NC stop pushbutton.
1)A passive high-pass filter is built from a 100 kohm resistor and a 100 nF capacitor. what is its cutoff frequency 2)For the filter in the above question what is its numeric gain at its cutoff frequency
A. Fourier Transform properties (a) If x ( t ) is real and even, show that its Fourier transform is real for all ω (i.e., its imaginary part is identically 0). (b) If x ( t ) is real and odd, show that its Fourier transform is imaginary for all ω (..
A digital output voltmeter has an input range of 0 to 30 V and displays three significant figures XX.X. The manufacturer claims an accuracy of ±2% of full scale. With a voltage reading of 5 V, what are the percent uncertainties of the reading due ..
A 4KHz audio signal is transmitted by using a PCM system and the quantization level, L is 256. Find transmission bit rate.
Determine the cost per kilowatt hour for the energy delivered by a typical alkaline 9-V "transistor" battery that costs $1.95 and is capable of delivering a current of 50 mA for a period of 10 hours. (For comparison, the approximate cost of energy..
A PCM-TDM system multiplexes 32 voice band channels each with a bandwidth of 0-4kHz. Each sample is encoded with an 8-bit PCM code. UPNRZ encoding is used.
The surface concentration is fixed at N0=1.8e20/cm^2 when diffusing boron into a uniformly doped n-type substrate. The atomic diffusion constant for boron in Si at the temperature of 950 C is 3.0e-15 cm^2/s.
A pn junction diode is reverse-biased when 5V of an external voltage is applied to the p-side of the diode while the n-side is grounded If two pn junction diode are connected in series pointing each other, at least 1.4 V must be applied to turn bo..
A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weigh of the rod in units of pounds-force. The specific gravity is 4.7 gravitational acceleration on Callisto is 1.25 meters per second squared.
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