Electromagnetic radiation with wavelength 2 = 21.2 μm is classified as infrared radiation. Use c = 2.998 x 108 m/s. (a) What is the frequency of the radiation? x Hz 1.4141e3 (b) If the electric field has a maximum magnitude of 39.5 kV/m, what is the maximum strength of the corresponding magnetic field? 0.13175 mT (c) What are the rms values of the electric and magnetic fields?
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- The electric field in an electromagnetic wave propagating in a vacuum has a peak value of 3,000 N/C and a wavelength of 500 nm. Which of the following is the correct expression for the magnetic field?An incandescent light bulb emits only 2.6 W of its power as visible light. What is the rms electric field of the emitted light at a distance of 3.0 m from the bulb?The rms electric field of an electromagnetic wave increases from 262 to 786 N/C. (a) Determine the wave intensities for the two values of the electric field. (b) What is the rms magnetic field associated with each electric field? (c) Determine the wave intensity for each value of the magnetic field. (a) S1 i 52- i (b) B₁ = i B₂ = i (c) S3= i S4= i >
- A certain electromagnetic field traveling in vacuum has a maximum electric field of 2000 V/m. What is the maximum magnetic field of this wave?The intensity of solar radiation that falls on a detector on Earth is 1.00 kW/m². The detector is a square that measures 6.11 m on a side and the normal to its surface makes an angle of 30.0° with respect to the Sun's radiation. How long will it take for the detector to measure 436 kJ of energy? SThe average intensity of sunlight reaching the earth is 1390 W/m2. A charge of 2.6 x 10-6 C is placed in the path of this electromagnetic wave. (a) What is the magnitude of the maximum electric force that the charge experiences? (b) If the charge is moving at a speed of 3.1 x 104 m/s, what is the magnitude of the maximum magnetic force that the charge could experience?
- 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 mSuppose the magnetic field of an electromagnetic wave is given by B = (2.7 x 10-10) sin(kx - wt) T. (a) What is the average energy density of the magnetic field of this wave? J/m³ (b) What is the average energy density of the electric field? J/m³The average intensity of sunlight reaching the earth is 1390 W/m2. A charge of 2.8 x 106 C is placed in the path of this electromagnetic wave. (a) What is the magnitude of the maximum electric force that the charge experiences? (b) If the charge is moving at a speed of 3.2 x 104 m/s, what is the magnitude of the maximum magnetic force that the charge could experience? (a) Number i Units (b) Number i Units eTextbook and Media