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Electric flux density in polarized medium. A uniform line charge density of PI = 4 μC/m, is located along the z axis in free space. A planar surface charge density p, = 20 μC/m2 is placed at x = 1, parallel to the yz plane.
(a) Find the electric flux density at a general point P(x, y, z).
(b) Find the electric flux density at point P(1, 0, 0).
(c) What is the polarization vector at a general point P(x, y, z), if space has a dielectric constant ε= 4ε0.
A current source of 12 cos2000t A, a 200 ohm resistor, and a 0.2 H inductor are in parallel. Assume steady-state condition exist. At t=1ms, find the power being absorbed by the (a) resistor; (b) inductor; (c) sinusoidal source.
Unpolarized light is incident on three polarizers: The first making an angle of 0 degrees with the vertical; the second making an angle of ? degrees with the vertical; and the last one making an angle of 90 degrees with the vertical.
a cost to produce, P, of $4.00. If we were able to reduce this to $3.55 through greater attention in the design, and if the cost to improve the design (in NRE) is $35,000, how many units must we sell to recover the increased design cost.
Four frequencies are applied at the input of a non-linear amplifier. Write down all of the frequency components at the output of the non-linear device. Write down only the first three harmonics.
The output stage of an amplifier in an old radio is to be matched to the impedance of a speaker. If the impedance of thespeaker is 8 ohms and the amplifier requires a load impedance of3.2 kilo ohms, determine the turns ratio of the ideal transform..
Your battery uses 4 Amperes to transfer 3 joules of charge through an element in a minute. What is the voltage across the battery AND what is the charge in Coulombs
When attached to adirect current supply of 120V. What value of current does each bulb draw What is the total current drawn by the bulbs If one bulb burns out, does the current through eachremaining bulb increase, decrease or remain the same
Consider a three-phase distribution feeder with line reactance of10 ohm supplying a three-phase Y-connected load of 200 kVA at power factor of 0.85 lagging.
describe with a numerical example the fundamental reason as to why live streaming video require a heavy usage of bandwidth as compared to live streaming audio. give a numerical example.
Assume that a receiver has a first amplifier stage with a 5K-ohm input resistance, a gain of 300, an input audio signal of 20V, and an operating temperature of 27oC. When the amplifier is operating with a bandwidth first of 10 MHz
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 is 640K bps. You may assume T0 = 290K.
An electric motor is developing 10 kW at a speed of 900 r/min. - Calculate the torque available at the shaft.
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