If the dielectric constant is a function of the frequency of the fields, the phase velocity is always the same for each frequency component of the wave. Select one: O True False
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- A 10.0 MHz magnetic field travels as a TEM wave in a fluid where the propagation velocity is 1.0 x 10^8. The amplitude of the wave drops by 50% of its initial value over a distance of 5.0 m in the fluid. What is the phase coefficient of this wave? # 2nx 10^5 rad/s # 5nx 10^5 rad/s # 10nx 10^5 rad/s # 20nx 10^5 rad/s # 100tx 10^5 rad/s # 200tx 10^5 rad/s # none of the aboveThe impedance from a to b in one of the cir- cuits below is plotted as a function of angular velocity w. L -W Select the circuit which corresponds to the plot. a. www R 1. b 2. None of these a. www R 3. a. be a b. 4. 5. 6. 609 a b www. R elle C www L R R elle elle -0000 elle L L C } CHigh-power lasers in factories are used to cut through cloth and metal (see figure below). One such laser has a beam diameter of 2.00 mm and generates an electric field having an amplitude of 0.750 MV/m at the target. Philippe Plailly/SPL/Photo Researchers, Inc. ☹ (a) Find the amplitude of the magnetic field produced. 2.5000 mT (b) Find the intensity of the laser. 1166 * MW/m² You can calculate this result using the amplitude of the electric field or the amplitude of the magnetic field. It is safer to use the electric field in case you calculated the magnetic field incorrectly. (c) Find the power delivered by the laser. XW You appear to be calculating this correctly using your incorrect result from part (b).
- aring > Part A What is the reactance of a 5.80 μF capacitor at a frequency of 70.0 Hz ? Xc= Submit Request Answer Part B 195] ΑΣΦ Xc = Submit What is the reactance of a 5.80 uF capacitor at a frequency of 3.00 MHz ? Provide Feedback VE ΑΣΦ ? Request Answer Ω ? Ω P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. Terms of Use | Privacy Policy | PermissiAttached is a homework question. Solve and show all steps!B,D,E
- Solve the frequency value correctly.In the figure below, let R = 7.80 , L = 2.05 mH, and C = 1.55 µF. S + a ele L R C (a) Calculate the frequency of the damped oscillation of the circuit when the switch is thrown to position b. kHz (b) What is the critical resistance for damped oscillations? ΙΩUse the following expression of transmittance through a variable thickness plate to show that the complex amplitude transmittance of a thin inverted prism with small angle ∝≪1and width do, is t(x, y) = hoexp[-j(n -l)ko∝x], where ho= exp(-jkodo)
- A radar used to detect the presence of aircraft receives a pulse that has reflected off an object 6.18x10-5 s after it was transmitted. What is the distance from the radar station to the reflecting object?A hanging lamp with a 70-W omni-directional bulb has a hemi-spherical lamp shade of height, H = 0.55 m, as shown below. (a) Find the total (average) power received across the shade. W (b) Calculate the intensity at a point on the shade. W/m²In recent years it has been possible to buy a 1.0 F capacitor. This is an enormously large amount of capacitance. Suppose you want to build a 1.1 Hz oscillator with a 1.0 F capacitor. You have a spool of 0.35-mm-diameter wire and a 3.1-cm-diameter plastic cylinder. /myct/itemView?assignment ProblemID=195605802&offset=next F2 # 3 E 80 F3 $ 4 R F FA 5 V T L FS G 6 B ▼ Part A How long must your inductor be if you wrap it with 2 layers of closely spaced turns? Express your answer with the appropriate units. ▸ View Available Hint(s) 1= Value Submit Provide Feedback Y C FO H & 7 HA « N F7 U 4 ** 8 J Units DII F8 M SE ? 9 DD K F9 O ) O 36 A F10 L P S F11 { F12