At some instant and location, the electric field associated with an electromagnetic wave in vacuum has the strength 97.7 V/m Find the magnetic field strength B, the total energy density u, and the power flow per unit area, all at the same instant and location.

At some instant and location, the electric field associated with an electromagnetic wave in vacuum has the strength 97.7 V/m Find the magnetic field strength B, the total energy density u, and the power flow per unit area, all at the same instant and location.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

On a clear day at a certain location, a 100-V/m vertical electric field exists near the Earth's surface. At the same place, the Earth's magnetic field has a magnitude of 0.500 × 10-4 T. Compute the energy densities of the electric field
In the figure an electric field is directed out of the page within a circular region of radius R = 3.50 cm. The magnitude of the electric field is given by E (0.800 V/m.s)(1 - r/R)t, where radial distance r≤R and t is in seconds. What is the magnitude of the magnetic field that is induced at radial distances (a)2.50 cm and (b)7.50 cm? R (a) Number i 3.2767933E-21 Units T (b) Number i 1.513724E-20 Units T > >
A certain commercial mass spectrometer is used to separate uranium ions of mass 3.92 × 10-25 kg and charge 3.20 × 10-¹⁹ C from related species. The ions are accelerated through a potential difference of 122 kV and then pass into a uniform magnetic field, where they are bent in a path of radius 1.03 m. After traveling through 180° and passing through a slit of width 0.923 mm and height 1.19 cm, they are collected in a cup. (a) What is the magnitude of the (perpendicular) magnetic field in the separator? If the machine is used to separate out 1.17 mg of material per hour, calculate (b) the current of the desired ions in the machine and (c) the thermal energy produced in the cup in 1.15 h. (a) Number i (b) Number (c) Number MO i Units Units Units -Detector
A magnetic field is uniform over a flat, horizontal circular region with a radius of 1.70 mm, and the field varies with time. Initially the field is zero and then changes to 1.50 T, pointing upward when viewed from above, perpendicular to the circular plane, in a time of 110 ms. (a) What is the average induced emf around the border of the circular region? (Enter the magnitude in uV and the direction as seen from above.) magnitude HV direction ---Select-- v as seen from above (b) Immediately after this, in the next 70.0 ms, the magnetic field changes to a magnitude of 0.500 T, pointing downward when viewed from above. What is the average induced emf around the border of the circular region over this time period? (Enter the magnitude in uV and the direction as seen from above.) magnitude direction ---Select-- v as seen from above
An automobile has a vertical radio antenna 1.15 m long. The automobile travels at 51.0 km/h on a horizontal road where Earth's magnetic field is 50.0 uT, directed toward the north and downward at an angle of 65.0° below the horizontal. (a) Specify the direction the automobile should move so as to generate the maximum motional emf in the antenna, with the top of the antenna positive relative to the bottom. O north O east O west O south (b) Calculate the magnitude of this induced emf. mv
A spatially uniform magnetic field is restricted in a circular region of space with radius of 3.75 cm and has a constant direction; see figure below. If the magnetic field varies with time t as B(t) = (24.5 mT/s²) ², the magnitude of the induced electric field at a distance of 5.00 cm from the center of the magnetic field region at t= 1.50 s is most nearly A. 25.8 mV/m magnetic field B. 8.46 mV/m region C. 1.03 mV/m D. 23.0 mV/m E. 17.3 mV/m 5.00 сm! xx
Problem 4: Displacement currents. A planar capacitor has two circular plates with equal radii R separated by a distance h. A dielectric cylinder of a smaller radius r 2 at.
An aircraft, of wing span 38.7 m, flies horizontally at a speed of 900 km/h. If the angle of dip of the magnetic field lines of the Earth is 64 degrees with respect to the Earth surface, calculate the emf induced between the tips of the wings. Take the value of the horizontal component of the magnetic field of the Earth B=2×10−5B=2×10−5 T. Please remember to select the correct units.
An automobile with a radio antenna 1.3 m long travels at 108.0 km/h in a location where the Earth's horizontal magnetic field is 3.0 ✕ 10−5 T. What is the maximum possible emf (in V) induced in the antenna due to this motion?
A capacitor in an LC oscillator has a maximum potential difference of 24.0 V and maximum energy of 184 µJ. When the capacitor has a potential difference of 12.0 V, what is the energy stored in the magnetic field of the inductor, in µJ?