Problem 6: An antenna radiates equally in all directions over a half space above a perfectly conducting ground plane. The strength of the electric field at 2.2 km from the antenna is 73 dB relative to one microvolt per meter. Calculate the power radiated and the radiation resistance given that the feeding current is 1.2 A (rms)

Q: The electric field from a radio station some distance from the transmitter is given by (10-4 N/C)…

A: Given, Electric field from a radio station, 10-4 NC cos 106t d = 86 cm

Q: If the energy received by 5 m² area in 560 seconds is 2880 KJ. Calculate the value of Solar constant…

A: Introduction :   In this question we are provided with value of area , time and energy. With these…

Q: Radiology. An x-ray tube has an output intensity of 2.6 mR/mAs at 100-cm source-to-image receptor…

A:

Q: A satellite in stationary orbit that beams a signal earthward with a power of 10 kilowatts and a…

A:

Q: The factors that influence the reflection of the radioelectric signal of the LOS type are due solely…

A: Radioelectric signal also a ground signal. ground wave divided into three component.surface wave,…

Q: An air-filled parallel plate capacitor is fed with a sinusoidal signal V = 20sin(10³i) mV. Calculate…

A: Given: V = 20 sin (103t) mV = 0.02 sin(103 t) VA = 10 cm2=10*10-4 m2d =2 mm = 2*10-3 m

Q: Large radio telescopes, like the one in Arecibo, Puerto Rico, can detect extremely weak signals.…

A: The power of the signal The area where the power is detected The power density The diameter of the…

Q: . In a certain media with relative permeability ur = 2.4, the speed of propagation = 1.5x10° m/s,…

A: d) Relative permittivity εr is defined as the ration of absolute permittivity of a medium ε to the…

Q: In a medium with (u, 1,6,= 8) the electric filed intensity is given by E =10 sin(1000t - 10x) ay…

A: See step 2

Q: The radiation pressure exerted by beam of light 1 is half theradiation pressure of beam of light 2.…

A: The radiation pressure, Pr=ICFor 100% absorption of lightPr=2ICFor 100% reflection of light

Q: Calculate the electric and magnetic fields produced by the radiation coming from 200W bulb at a…

A:

Q: nalf power angle. If a normalized radiation intensi

A: Given, The radiation intensity of antenna is given by the function: U=acos2(bθ) To calculate the…

Q: Radio waves have a frequency of 75.8 MHz. Calculate the corresponding wavelength. Tolerance 5%.…

A:

Q: In a simple lossless medium with u, = 3, &, = 27, the phasor electric and magnetic induction density…

A: Answer is option A Because amplitude of magnetic Field Because amplitude is =2/3 frequency=900 MHz

Q: ICLO-5] 51 Peg is a star in our galaxy, similar to the Sun, In 1005, two ewiss astronomers…

A: The orbital period of the planet. Given, mass of the sunM=1988500×1024 kgUniversal gravitational…

Q: What inductance must be conneded to Itpt capacitor r capable g getlereting 620mm Gie. Visible)…

A: The speed of the light is c = 3x108 m/s. The wavelength of the light is λ=620 nm=620×10-9 m. The…

Q: Using your knowledge of radiation pressure, calculate the force of a laser beam striking a mirror…

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Q: An air-filled capacitor is composed of parallel large circular plates with a common radius of 9 cm.…

A:

Q: Based on the information provided above, what wavelength corresponds to the maximum emission from…

A: Let T denotes the temperature and λ denotes the wavelength corresponds to the maximum emission.

Q: A 2-meter conductor, moving at a rate of 14 m/s cuts a magnetic flux density of 5mT at right angles.…

A:

Q: Lunar astronauts placed a reflector on the Moon’s surface, off which a laser beam is periodically…

A:

Q: (a) Determine the directivity of an antenna with the following radiation intensity (- U= U, Sin{ n…

A: Given:                                        U=U0SinπCos(θ)…

Q: Compute for the following wavelength of the following frequency: 5. 50Hz

A: The frequency of the sound wave is f = 50 Hz The wavelength of a wave is given by λ = vf, where v =…

Q: Given that the intensity of energy arriving from the sun, as measured in space, just outside the…

A:

Q: (a) A center-fed dipole with a z-directed current has electrical length LA=0.075, show that the…

A:

Q: Emergency responders for radioactive material incidents normally use the inverse square law of…

A: The inverse square law states that the intensity of any radioactive source decreaseswith the square…

Q: If the energy received by 5 m² area in 430 seconds is 5120KJ. Find the value of Solar constant ?

A: Introduction :  In this question we are provided with value of area , time and energy . With these…

Q: The energy flux from the sun has a peak value of around 1500 W/m2, and solar cells are around 15%…

A: The daily energy consumption of the US is given by:

Q: An AM transmitter has a carrier power output of 50 W. What would be the to- tal power produced with…

A: Answer is as below

Q: A uniform plane wave in free space is given by: Exs=800cos⁡(10^8t - βz)az   V/m Find: Phase…

A:

Q: (a) Calculate the rate in watts at which heat transfer through radiation occurs (almost entirely in…

A: a) The rate which heat transfer through radiation is, Therefore,

Q: 7.1.5. In the 25-ft Space Simulator facility at NASA's Jet Propul- sion Laboratory, a bank: of…

A: The expression for the average radiation pressure on a totally absorbing section of the floor is,