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3. A radio station sends a sinusoidal wave with average power of 50kW. Assume that the...
A radio station on the earth's surface emits a sinusoidal wave with average total power 50 kW (Fig. 32.19). Assuming...
A radio station on the earth's surface emits a sinusoidal wave with average total power 50 kW (Fig. 32.19). Assuming that the trans- mitter radiates equally in all directions above the ground (which is unlikely in real situations), find the electric-field and magnetic field amplitudes Emax and Bmar detected by a satellite 100 km from the antenna 32.19 A radio station radiates waves into the hemisphere shown. Satellite = 100 km
Public television station KQED in San Francisco broadcasts a sinusoidal radio signal at a power of...
Public television station KQED in San Francisco broadcasts a sinusoidal radio signal at a power of 316 kW. Assume that the wave spreads out uniformly into a hemisphere above the ground. A) At a home 5.50km away from the antenna, what average pressure does this wave exert on a totally reflecting surface? answer in PA units B)At a home 5.50km away from the antenna, what are the amplitudes of the electric and magnetic fields of the wave? answer in N/C,...
A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW power. Assume the radiation...
A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW power. Assume the radiation is emitted uniformly in all directions. 1) what is the wave's intensity 30 km from the antenna 2) what is the electric field amplitude at this distance?
FM radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with...
FM radio station KRTH in Los Angeles broadcasts on an assigned frequency of 101 MHz with a power of 50,000 W. (a) What is the wavelength of the radio waves produced by this station? (b) Estimate the average intensity of the wave at a distance of 35.3 km from the radio transmitting antenna. Assume for the purpose of this estimate that the antenna radiates equally in all directions, so that the intensity is constant over a hemisphere centered on the...
A radio station broadcasts with a power of 50,000 watts. Estimate the average intensity of the...
A radio station broadcasts with a power of 50,000 watts. Estimate the average intensity of the wave at a distance of 50 km from the radio transmitting antenna. Assume for the purpose of this estimate that the antenna radiates equally in all directions, so that the intensity is constant over a hemisphere centered on the antenna.
An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.60 kW. A dipole rece...
An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3.60 kW. A dipole receiving antenna 70.0 cm long is at a location 4.00 miles from the transmitter. Compute the amplitude of the emf that is induced by this signal between the ends of the receiving antenna.
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that...
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that the radiation is omitted uniformly in all directions. (60 - 8.85 x 10-12 c/Nm)c- 3.00 x 10 m/s) Part A What is the wave's intensity 33 km from the antenna? Express your answer in watts per meter squared. 190 AED ? I- W/m Submit Request Answer Part B What is the electric field amplitude at this distance? Express your answer in volts per meter....
An 800 kHz radio signal is detected at a point 3 km distant from a transmitter...
An 800 kHz radio signal is detected at a point 3 km distant from a transmitter tower. The electric field amplitude of the signal at that point is 610 mV/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. The intensity of the radio signal at that point is closest to: 3.5x10-4 W/m2 9.9x10-4 W/m2 O2.5x10-4 W/m2 4.9x10-4 w/m2 7.0x10-4 w/m2
Question1. A U.S. or Canadian broadcasting licence for a (large) FM radio station stipulates a maximum...
Question1. A U.S. or Canadian broadcasting licence for a (large) FM radio station stipulates a maximum broadcast power of 100 kW. At any distance from the broadcast antenna the intensity doesn’t quite follow the inverse square law that is described for spherical waves in the videos lectures, because of reflection of the signal off of the ground. But the inverse square law is not a bad approximation, so let’s use it a) Find the intensity of the radio signal from...
Tutorial Exercise A dish antenna with a diameter of 10.9 m receives (at normal incidence) a...
Tutorial Exercise A dish antenna with a diameter of 10.9 m receives (at normal incidence) a radio signal from a distant source, as shown in the figure below. The radio signal is a continuous sinusoidal wave with amplitude E -0.37 V/m. Assume the antenna absorbs all the radiation that falls on the dish. (a) What is the amplitude of the magnetic field in this wave? (b) What is the intensity of the radiation received by the antenna? (c) What is...
A radio station on the earth's surface emits a sinusoidal wave with average total power 50 kW (Fig. 32.19). Assuming that the trans- mitter radiates equally in all directions above the ground (which is unlikely in real situations), find the electric-field and magnetic field amplitudes Emax and Bmar detected by a satellite 100 km from the antenna 32.19 A radio station radiates waves into the hemisphere shown. Satellite = 100 km
A radio antenna broadcasts a 1.0 MHz radio wave with 27 kW of power. Assume that the radiation is omitted uniformly in all directions. (60 - 8.85 x 10-12 c/Nm)c- 3.00 x 10 m/s) Part A What is the wave's intensity 33 km from the antenna? Express your answer in watts per meter squared. 190 AED ? I- W/m Submit Request Answer Part B What is the electric field amplitude at this distance? Express your answer in volts per meter....
An 800 kHz radio signal is detected at a point 3 km distant from a transmitter tower. The electric field amplitude of the signal at that point is 610 mV/m. Assume that the signal power is radiated uniformly in all directions and that radio waves incident upon the ground are completely absorbed. The intensity of the radio signal at that point is closest to: 3.5x10-4 W/m2 9.9x10-4 W/m2 O2.5x10-4 W/m2 4.9x10-4 w/m2 7.0x10-4 w/m2
Tutorial Exercise A dish antenna with a diameter of 10.9 m receives (at normal incidence) a radio signal from a distant source, as shown in the figure below. The radio signal is a continuous sinusoidal wave with amplitude E -0.37 V/m. Assume the antenna absorbs all the radiation that falls on the dish. (a) What is the amplitude of the magnetic field in this wave? (b) What is the intensity of the radiation received by the antenna? (c) What is...
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