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1. Find XL for the following inductors. In each case, the frequency is 100 Hz. a. L = 250 milliHenries b. L = 50 microHenries
2. Find XC for the following capacitors. In each case, the frequency is 5 KHz. a. C = 10 microFarads b. C = 470 picoFarads
3. The peak voltage supplied to an AC circuit is 20 V. The peak current is 2.5 A. The angle between the voltage and current is 30 degrees. What is the power in Watts supplied to the circuit?
4. The rms voltage supplied to an AC circuit is 24 V. The rms current is 0.75 A. The angle between the voltage and current is -60 degrees. What is the power in Watts supplied to the circuit?
5. Convert to polar: a. 100 angle 30 degrees b. 50 angle -60 6. Convert to rectangular: a. 10 + j 20 b. 100 - j 20
Determine ideal impulse response using inverse discrete-time Fourier transform. An ideal low-pass filter is described in the frequency-domain by
Let the probability of a bit error be p, and the length of a data frame be N. Find the probability of 1, 2, 3, and 4 bit errors occurring in the frame. a) Tabulate the results for N = 1000, 10000, and 100000 bits, for p = 10-6, 10-8, and 10-14
An electric pencil sharpener is rated 240 mW, 6 V is connected to a 9-V battery and a series-dropping resistor Rx needed to power the sharpener. Calculate the value of the series-dropping resistor Rx needed to power the sharpener.
Assume the z0 is in the far field and derive an expression for the strength to return as a function of angle. Make approximations where appropriate and do not forget the sidelobes.
Analysis of z transform to time domain, poles and zeros, From a given z transform X(z) = {1- z^-10}/{1 - z^-1} the discrete time domain form x(n) is deduced using complex manipulation and inverse transforms to arrive at x(n) = x(n-1) + u(n) - u(n-..
A 150 MVA, 24 kV, 123% three-phase synchronous generator operates with an induced voltage that is twice the rated line-to-neutral voltage. Calculate the three-phase steady-state short-circuit current at the generator terminals.
(1) What might be an example of an input and an output What are some simple examples of what constitutes the distinction between input into a program and output from the program (2) What type of arithmetic operations are supported in C++
A silicon diode with a breakdown voltage of 2000V that is conducting a forward current of 2000A is turned off with a constant diR/dt=250 A/s. Roughly estimate the time required for the diode to turn off.
In one type of computer keyboard, each key holds a small metal plate that serves as one plate of a parallel-plate, air-filled capacitor. When the key is depressed, the plate separation decreases and the capacitance increases.
Discrete sequence plot in Matlab, Consider the following formula, x[n] = x[n-1] + x[n-3] n>=3, find the rest of the sequence for 0
The probability that a person will install a black telephone in a residence is estimated to be 0.3. Find the probability that the tenth phone installed in a new subdivision is the fifth black phone.
An analog system has a bandwidth of 10 MHz, a photodetector of = 0.5 A/W and ID = 1 nA, and a signal to noise ratio (SNR) of 30 dB. The receiver's temperature is 270 C and the load resistance is 50 .
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