4. A very small source of light that radiates uniformly in all directions produces an electric field amplitude (Eo) of 2.96 V/m at a point 33.0 m from the source. a) Find the magnetic field amplitude at that same distance (33.0 m from the source). b) Find the intensity of the wave (the average of the magnitude of the Poynting vector) at that distance. c) Find the average radiation pressure that the wave exerts on a totally reflecting surface 33.0 m from tho courco
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- The intensity of a particular TV station’s signal is I =1.01 x 10^(-13) W/m^2 when it arrives at a 28-cm diameter satellite TV antenna. A) Calculate the total energy received by the antenna during 5.0 hours and 40 minutes of viewing this station’s programs. B)What is the amplitude of the field of the EM waves? (E field)Example The normalized radiation intensity of an antenna is defined by U(0) = sin(0), Find the: b. FNBW a. HPBW 270 300 1 240 330 210 180 150 Exam The r F a.3. The electric field component of a communication satellite signal traveling in free space is given by Ē (2) =[⸠- â,(1+ /)]12e/0r: V/m (a) Find the corresponding magnetic field H (z). (b) Find the total time-average power carried by this wave. (c) Determine the polarization (both type and sense) of the wave.
- 5) A circular-plate capacitor with radius 10.0 cm and plate separation 4.00 mm is being charged with a 0.100 A current. Calculate the a) the time rate of change of electric flux between the plates and b) the displacement current. c) the magnetic field between the plates, 5.00 cm from the center. 6) An electromagnetic wave in vacuum has an electric field amplitude of 100 V/m and frequency of 60 kHz. Calculate the a) amplitude, b) frequency of the corresponding magnetic field.4. A spotlight shines onto a square target of area 0.35 m?. If the average rms strength of the magnetic field in the EM waves of the spotlight is 1.2 x 107 T, calculate the energy transferred to the target if it remains in the light for 12 minutes. (Give answer in joules) F3 FB #3 2$ 4 & * 2 3 5 8 9 W E T U K9: Please help answer this ASAP
- 6. The magnetic field intensity of an electromagnetic wave propagating in a lossless medium with e = 6€0 and µ = µo is given by Ĥ (y, t) = 24 sin(10't – ky + 7/6) (A/m) What is the corresponding k and Ē(y, t)?5) A source of a beam of natural light of intensity 3 kW/m2, three ideal polarizers 1, 2, and 3, and an observer. Polarizer axis angles are measured clockwise from the vertical, as viewed by the observer. The axis angle of polarizer 1 is set at 0° (vertical), and the axis angle of polarizer 2 is set at 60°. The axis angle of polarizer 3 is set at 50°. What is the intensity of the beam at the observer? (Show your work step by step) (1 What is the electric field amplitude in an electromagnetic wave that has a magnetic field amplitude of 5.00 x 10-4rmT? Your units should be in V/m, but do not include your units in the answer box.
- 4: If you wish to observe features that are around the size of atoms, say 7.5 × 10-10 m, with electromagnetic radiation, the radiation must have a wavelength of about the size of the atom itself. A- If you had a microscope which was capable of doing this, what would the frequency of electromagnetic radiation be, in hertz, that you would have to use? B- What type of electromagnetic radiation would this be?What are the associated peak amplitudes of the E and H fields if sunlight has a maximum intensity of 1300 W/m2 on the earth's moon? Calculate the relative strengths of the forces on the moon due to the gravitational field of (a) the Earth, (b) the Sun (c) the force from solar pressure on the moon. Use internet or other resources to estimate any required physical constants, masses, distances and areasWhat is correct about an electromagnetic wave in vacuum (or free space)? Group of answer choices The amplitude of the electric and magnetic fields are the same. The net energy in the electric and magnetic fields are the same. The energy densities in the electric and magnetic fields are the same. When in the vacuum, electromagnetic waves of higher frequencies travel faster than their lower frequency counterpart.