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1. Discuss polarization of sinusoidally time-varying fields, as it is relevant to propagation of uniform plane waves.
2. Discuss the propagation of uniform plane waves arising from an infinite plane current sheet of nonsinusoidally time-varying surface current density.
What happens to the spectrum and time domain output when the laser is mode-locked? Why is a four-level system normally more efficient than a three-level system? What are the primary characteristics of an argon laser?
Two charged particles, Q1 = +5.50 nC and Q2 = -3.40 nC, are separated by 39.0 cm. (a) What is the electrical potential energy of the pair (b) What is the electric potential at a point midway between the charged particles
Consider a 4-bit counter made with JK flip-flops with preset and clear inputs. Describe the changes/additions that need to make the counter reset after counting to 1001. Be sure to state any assumptions that are made.
The power amplifier for a car stereo amplifier has a rated output power of 750 watts when operating at room temperature. Assuming a Class B amplifier with the maximum theoretical efficiency is used,
Implement the following Boolean function with an 8-to-1-line multiplexer and a single inverter with variable D as its input: F(A,B,C,D)= Em(2,4,6,9,10,11,15)
Find the rpm of the motor if it is lifting a 4-oz load by a string over a 3-in. radius pulley.
Design an adder that computes the sum of four 8-bit numbers, using 8-bit carryripple adders. Use a basic 8-bit carry-ripple adder as a building block for the design.
where fc is the carrier frequency, Ac is the carrier amplitude, µ is the modulation index, and x(t) is the baseband message signal. We assume that x(t) has absolute bandwidth W
The transistor parameters for the circuit shown in given Figure are: hF E = 50, VB E (on) = 0.7 V, and VA = 100 V. Find the loop gain T.
Find the transfer function and the difference equation for a 2nd -order FIR filter that has unity d.c. gain, but for which the given input x(k) produces zero forced response. (Your filter will have a "notch" at the given frequency, and H(1) =1.)
An inverting op-amp circuit with the topology of Fig. 2.4 on page 65 of the Text, has Ri = 4.7 kΩ and R2 = 47 kn. What closed-loop gain would you expect? In the laboratory, a student accidentally exchanges these two resistors. What gain would you ..
For a "Personal water craft" water is pumped from beneath the craft and discharged out the rear in a 1.25 inch diameter stream at a velocity of 75 ft/sec. Assuming that the craft and rider weighs 650lbs find the force acting on the craft and maxim..
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