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R- 1k ohm; L=1nH for the circuit represented in Fig. 8.1, and with the knowledge that i(0) = -3mA: a) Write an expression for i(t) valid for all t>=0 b) Compute i(t) at t=0, t=1ps, 2ps, and 5ps
Determine the temperature in the middle of the bar and evaluate it at t = 1, 2, 3, 10, 50 sec. First guess, and then calculate. Also, plot the temperature expression vs. time from t = 1 to 50 sec us
A one quarter wavelength piece of 75 ohm microstrip line has a capacity load of Xc = 22 ohms. What impedance does a driving generator see
A PPL multiplier transmitter is to operate with a 915 MHz output. With a divide factor of 64, what value of crystal is needed
The signal noise ratio in an FM system is 4:1 The maximum allowed deviation is 4 KHz. How much frequency deviation is introduced by the phase shift caused by the noise when the modulating frequency
For a single frequency sine wave modulating signal of 3 KHz with a carrier frequency of 36 MHz, what is the spacing between sideband
AN SSB signal is generated by modulating a 5 MHz carrier with a 400 Hz sine tone. At the receiver, carrier is reinserted during demodulation, but its frequency is 5.00015 MHz rather than exactly 5 M
Three single-phase transformer are used to form a three-phase transformer bank rated 13.8kV(delta)/120kV(wye). One side is connected to a three-phase load of 12 MVA at 0.8 power factor lagging
For a certain source-free parallel RLC circuit, R=1k-ohm, C=3uF and L is such that the circuit response is overdamped. Write an equation for the voltage across the resistor if it is known that v(0-)
Identify three test cases, one using a number with 4 factors, one using a negative number, and one using a number with more than 4 factors. For each of the three test cases show what inputs you will
A wire of diameter 1 mm and conductivity 5*10^7 S/m has 10^29 electrons / m^3 when an electron field of 10 mV / m is applied. Determine charge density of free electrons, current density, and current
An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the resulting steady state - state current has a
A conducting filament containing a small 400 ohm resistor is formed into a square loop on the x-y plane as explained in the previous problem. Find I at t = 2*10^-4 sec if (a) \(B = 3cos(12000\pi t)a
A three phase Y-connected 220-Volt 10-Hp, 60Hz, 6-pole induction motor has the following constants in Ohms per phase referred to the stator. R1=0.294, R2=0.144, X1=0.503, X2=0.209, Xm=13.25.
A linear time-invariant system is described by the difference equation y[n]=x[n]+x[n-4] (a) Find its impulse response h[n]. (b) Find its system function H(z). (c) Plot the poles and zeros of H(z) in t
Assume that a load Z absorbs power of 150 W at a lagging power factor of 0.8, and the voltage across the load Z is 220 Vms, 50 Hz. What must be the value of capacitor that needs to be connected in p
Calculate A - B for the pair of numbers, 1101011, 0101010 assuming a two's complement number system and that the numbers are stored in one byte of memory. The numbers are in un-complemented form.
Two batteries with emf's of 1.5V and 1.2V and internal resistances of 0.50-ohm and 0.80-ohm, respectively, are connected in parallel with + terminals together. a.) Determine the current they would d
A thin conducting wire of length 3w forms a planar equilateral triangle. A Direct current I flows in the wire. Find the magnetic flux density at the center of that triangle.
An 80 kHz sinusoidal voltage has zero phase angle and a maximum amplitude of 25 mV. When this voltage is applied across the terminals of a capacitor, the steady-state current has a maximun ampliture
An FSK system with Rb = 110bits/sec is transmitted over an RF Channel with white noise. The receiver uses non-coherent detection. If Eb/N = 5dB, evaluate Pb for this system.
The voltage drops across three resistors in series are measured to be 10.0V, 15.0V, and 25.0V. If the largest resistor is 47.0ohm, what is the value of the smallest resistor
Determine the conductor size for each motor tap, the motor controller size, overload rating, motor and controller disconnect rating, time-delay fuse rating, and motor branch circuit conductor size.
The transmit antenna gain is 2.1dB, and the receive antenna gain is 1.6dB. The received is 18Km away from the transmitter. The receiver has a Noise Figure of 8dB, Bandwidth 1.7 MHz and the Data Rate
Design a multiplier based on the flowing pseudo algorithm where the multiplicand is A and the multiplier is B. P=0 : for i = 0 to n - 1 do if b(i) =1 then P=P+A ; end if; Left-shift A ; end for; a)