Explain why the electric and magnetic field strengths of an electromagnetic wave (produced by an antenna connected to an ac generator) vary sinusoidally.
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- The magnetic field for an EM wave is given by the following equation: Bz= (−8μT) cos((9.67×107m−1)z−(ω rad/s)t) Find: (a) The frequency and wavelength of the wave b) The direction of travel (c) The direction of the E field (d) The amplitude of the E field (e) Write an equation for the E filed for this waveWe are keeping track of the electric field of an electromagnetic wave, and we note when the electric field is at half of its peak magnitude. What can we say about the magnitude of the magnetic field of the wave?A plane electromagnetic wave has a maximum electric field of magnitude 2.99 x 10-3 V/m. Find the maximum magnetic field amplitude. Number i Units
- 13. A certain 60.0 Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 27.5 kV/m. (a) What is the wavelength of this very low frequency electromagnetic wave? m(b) What is its maximum magnetic field strength? TWhat inductance must be connected to a 25 pF capacitor in an oscillator capable of generating 490 nm (i.e., visible) electromagnetic waves?To maximize the magnitude of the current induced in a receiving antenna, should the antenna be oriented parallel or perpendicular to the polarization of the electromagnetic wave? Explain your reasoning.
- An electromagnetic wave with frequency 65.0 Hz travels in an insulating magnetic material that has dielectric constant 3.64 and relative permeability 5.18 at this frequency. The electric field has amplitude 7.20 × 10-³ V/m. Part A What is the speed of propagation of the wave? 17 ΑΣΦ V= Submit Request Answer Part B What is the wavelength of the wave? ΠΙ ΑΣΦ X = Submit Request Answer ? ? m/s mThe maximum value of the electric field in a light wave is 800 N/C. Calculate the rms value of the magnetic field in this wave in Tesla.Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Doppler shift in the reflected wave. Suppose a police radar transmits at a frequency of 22.0 GHz and receives a wave reflected from a car moving toward the radar at 69.0 mph. Find the frequency shift Affofs (in Hz) between the observed (received) and source (transmitted) frequencies. HINT -0.019507 ҳ Hz Need Help? Submit Answer Read It ♡
- A certain 60.0 Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 45.2 kV/m. (a) What is the wavelength of this very low frequency electromagnetic wave? (b) What is its maximum magnetic field strength?A plane electromagnetic wave is traveling in a vacuum. The magnetic field is directed along the z-axis and given by: B, = 3.0µT sin ((1.0 × 107 )x - (3.0 × 1015 )t ) a) Determine the wavelength , of the wave. b) What is the frequency, f, of the wave in Hertz? c) Determine the maximum strength of the B-field. d) Determine the maximum strength of the E-field and it direction. e) Can you find a time and place when the B-field is zero? f) What is the strength of the E-field when the B-filed is zero?#3: A certain 60.0 Hz AC power line radiates an electromagnetic wave having a maximum electric field strength of 13.0 kV/m. A) what is the wavelength of this very low frequency EM wave? B) What is its maximum magnetic field strength?