At some instant and location, the electric field associated with an electromagnetic wave in vacuum has the strength 55.1 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. 1.84 x10-7 J/m3 B = u = E TOOLS x10 power flow per unit area: W/m?

At some instant and location, the electric field associated with an electromagnetic wave in vacuum has the strength 55.1 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. 1.84 x10-7 J/m3 B = u = E TOOLS x10 power flow per unit area: W/m?

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

Problem 4. A magnetic field directed into the page changes with time according to B = 2.0t³ - 4.0ť² + 3.0, where B is in tesla and t is in seconds. The field has a circular cross section of radius R = 2.5 cm (see figure below). (a) When t= 1.00 s and r₁= 5.0 cm, what are the magnitude and the direction of the electric field at point P₁? (b)When t = 2.00 s and r2 = 2.0 cm, what are the magnitude and the direction of the electric field at point P₂? xxxxx xxxxx xxxx** ** xxx T97 xxx R x xxxxx ****** xxxxx Bin n P₁
Estimate the radiation pressure due to a 75 W bulb at a distance of 7.8 cm from the center of the bulb. Express your answer to two significant figures and include the appropriate units. ? Prad = Value Units Estimate the force exerted on your fingertip if you place it at this point. Assume that the area of a fingertip is 1.3 cm? Express your answer to two significant figures and include the appropriate units. | ? F = Value Units
1. A 0.190-A current is charging a capacitor that has circular plates 12.2 cm in radius. The plate separation is 4.00 mm. (a) What is the time rate of increase of electric field between the plates? (b) What is the magnetic field between the plates 5.00 cm from the center?
The induced magnetic field at radial distance 7.6 mm from the central axis of a circular parallel-plate capacitor is 2.2 x 107 T. The plates have radius 2.3 mm. At what rate is the magnitude of the electric field between the plates changing? Number i Units
29.5. A magnetic flux of 50 µWb passes through a perpendicular loop of wire having an area of 0.78 m2. What is the magnetic flux density? Ans. 64.1 uT 28 6
BONUS: An experiment on the Earth's magnetic field is being carried out 1.00 m from an electric cable. What is the maximum allowable dc current in the cable if the experiment is to be accurate to ±5.0%?
consider a bright star in our sky. assume its distance from earth is 38.3 light-year (ly) and its power output is 4.00 * 10^28 W. about 100 times that of the sun. one light-year is the distance traveled by light through a vacuum in one year. a. find the intensity of the starlight at the earth. b. find the power of the starlight at the earth intercepts ( the radius of earth is 6.38 * 10^6 m .)
A (8.42x10^-1)-m radius cylindrical region contains a uniform electric field along the cylinder axis. It is increasing uniformly with time. What is the rate of change (magnitude) of the electric field required to obtain a total displacement current of (2.047x10^0) nA through a cross section of the region? Provide your answer in V/(m.s) with three significant figures.
An electric field with initial magnitude 210 V/m directed into the page and increasing at a rate of 13.0 V/(ms) is confined to the area of radius R = 15.0 cm in the figure below. If r = 45.0 cm, what are the magnitude and direction of the magnetic field at point A? magnitude direction ---Select--- Ø Ø A O R
Given: B = 5 * 10-5 T ẑ; σ = 4 (Ohm-meters)-1 (conductivity) a) Assume that seawater is moving at a constant velocity v = v0 ŷ and that the Earth’s magnetic field is along the ẑ-direction. Calculate the electric current density J produced by the magnetic force. Hint: first compute the force per unit charge, F/q, and then use the relationship J = σ(F/q). b) Derive the equation of motion of a cylindrical differential volume element of base area δA and height δh parallelto the direction of J. Assume that seawater has a known volumetric mass density ρ. Show that this equation implies that the velocity satisfies the following differential equation:dvy/dt = vy/τwhere τ is a constant that you should write in terms of B, σ, and ρ.
The induced magnetic field at radial distance 5.8 mm from the central axis of a circular parallel-plate capacitor is 1.8 × 10-8 T. The plates have radius 4.0 mm. At what rate is the magnitude of the electric field between the plates changing? Number i Units
A 48 turn coil of wire creates a circular area of 6.95 cm2. If a magnetic field of 90.79 T hits this area at a right angle, what is the magnetic flux (in Wb) through the coil?