What is the electric field amplitude at a distance of 3.5 m from a 65 W lightbulb? Assume all the power of the bulb goes into light of a single color with λ = 500 nm and assume the bulb produces a spherical wave.
What is the electric field amplitude at a distance of 3.5 m from a 65 W...
The intensity of light is 25 W/m2. What are the amplitudes of the associated electric field and Tries 0/8 magnetic field? Tries 0/8 2 What is the electric field amplitude at a distance of 2.5 m from a 70 W lightbulb? Assume all the power of the bulb goes into light of a single color with = 500 nm and assume the bulb produces a spherical wave.
What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 100V/m? What is the intensity of the wave?
Fields on the Page Estimate the maximum magnitudes of the electric and magnetic fields of the light that is incident on a page because of the visible light coming from your desk lamp. Treat the lightbulb as a point source of electromagnetic radiation that is 6% efficient at transforming energy coming in by electrical transmission to energy leaving by visible light. SOLUTION Conceptualize The filament in your lightbulb emits electromagnetic radiation. The brighter the light, the larger the magnitudes of...
[12.2] Direct light from the Sun delivers a time-averaged power of about 1300 W to every square meter on Earth. If we assume that all this light is delivered at a single wavelength λ-500 nm find expressions for the electric and magnetic field using the forms E(x, t) = Eo sin(kx-wt), B (x, t) = Bo sin(kx-wt). Give numerical values for Eo, Bo, k, and w.
33. A light bulb emits light uniformly in all directions. If the peak electric field of this light is 16 N/C at a distance of 1.35 m from the bulb, (a) what is the average power radiated by the bulb? (b) What is the peak magnetic field B at that distance?
Find the amplitude (maximum) of the electric and magnetic fields at a point 2.50 m from light bulb that radiates 75.0 W of light uniformly in all directions. These are the answers - ( E0 = 26.8 V/m, B0 = 8.9 x 10-8 T) Can you please provide the solution that lead these answers with a photo
PROBLEM #1: A particular radio receiver can detect signals with electric field amplitude as small as 360 uV/m. (a) What is the smallest magnitude of the magnetic field that can be de- tected? (b) What is the intensity of the smallest detectable signal? (c) This wave strikes a spherical dust grain which has a radius of 200 nm and a mass of 1.0 ug. If the grain completely absorbs the wave, determine the force exerted by the wave on the...
A light source emits EM waves of 4.00 W total power uniformly in all directions. Assume the wave have a single frequency (monochromatic) a) What is the intensity of the waves at 2.00 m from the light source? b) What iw the electric eld amplitude Eo produced at 2.00 m from the light source?
The amplitude of the electric field in the electromagnetic wave is Erms = 840 V/m. The intensity of this wave is a) 937 W/m2 b) 614 W/m2 c) 747 W/m2 d) 455 W/m2 e) 1150 W/m2
What is the amplitude of the magnetic field B in an electromagnetic wave that has the amplitude of the electric field of E= 1000 V/m ? Define the speed of light in vacuum as C. Note that C= E/ B. Assume that this electromagnetic wave propagates in vacuum. The amplitude of the magnetic field B is: OA. 1.50 x 10 (T); OB.3.33 x 10-6 m); 0.6.67 x 10-5 (T); Op. 1.50 x 10-5 (T); E. 2.50 x 10-5 (1).